Prof. Nderitu John Huria Publications |
1 | 2018 | James Wanjohi Muthomi,Geoffrey Ongoya Wafula, John Huria Nderitu, George Ndiema Chemining’wa (2018). Integration Of Seed Dressing, Bio-pesticides And Intercropping To Reduce Pesticide Usein Snap Bean Production( 2018). International Click to View Abstract
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2 | 2018 | Mwinzi, D. K.; Kioko, E. N.; Nderitu, J. H.; Kimenju, J. W. (2018)Butterfly Diversity And Abundance In Ngango Forest Edge And Sorrounding Farmlands In Taita-Taveta County, Kenya Click to View Abstract
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3 | 2018 | Oliver Otieno,; Muthomi, J; Nderitu, J. HMechanism Contributing To Poor Crop Emergence And Establishment Of Common Beans Afer Lablab Incorporation. Mid-year Workshop, Kisumu, Kenya Click to View Abstract
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4 | 2018 | Nderitu, J. H.; Mutyambai, D.; Muo Kasina; Mueke, A. (2018) Impact Of False Codling Moth (FCM) In Horticulture In Kenya. Workshop On Management Of False Codling Moth, Machakos, Kenya Click to View Abstract
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5 | 2018 | Nderitu, J. H. ; Muo Kasina, Nzuve Felister (2018). Review On Responsive Managementactions Against Fall Armyworm (Spodoptera Frugiperda (JE Smith)) In Kenya. RUFORUM Biennial Conference Slated For 22-26 October 2018 In Nairobi, Kenya Click to View Abstract
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6 | 2018 | Nderitu, J. H.; Muo Kasina; Nzuve, Felister (2018). RUFORUM Biennial Conference Slated For 22-26 October 2018 In Nairobi, Kenya Click to View Abstract
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7 | 2017 | A Study Of The African White Rice Stem Borer (Maliarpha Separatella Rag.) Population Density Fluctuations At Mwea Irrigation Scheme In Central Kenya Click to View Abstract
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8 | 2017 | OPPORTUNITIES TO PROMOTE A VIBRANT RESEARCH CULTURE IN UNIVERSITIES IN EAST AFRICA Click to View Abstract
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9 | 2017 | A Life Of Struggles Click to View Abstract
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10 | 2017 | Efficacy Of Potassium Salts Of Fatty Acids In The Management Of Thrips And Whitefly On Snap Beans Click to View Abstract
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11 | 2017 | Funded Research And Grants Proposal Writing. (2017. )Review Of Current Trends In Research In East Africa; Their Implications For The Region And For Higher Education And Learning. Programme For The Pedagogy Skills, Workshop For Academic Staff At Moun Click to View Abstract
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12 | 2016 | Assessment Of Yield Loss Caused By The African White Rice Stem Borer (Maliarpha Separatella Rag (Lepidoptera: Pyralidae) At Mwea Irrigation Scheme, Kirinyaga County, Kenya Click to View Abstract
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13 | 2016 | Effectiveness And Profitability Of Insecticide Formulations Used For Managing Snap Bean Pests Click to View Abstract
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14 | 2016 | Role Of AIVs In Climate Smart Agriculture Click to View Abstract
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15 | 2016 | 43. Nderitu, J. H. (2016). Introduction To Organic Production: Principles And Benefits. Training Workshop On Organic Agriculture, University Of Mauritius, Reduit, 1-07 Dec 2016 Click to View Abstract
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16 | 2016 | 44. Organic Crop Production Systems - Process Of Conversion. (2016) Training Workshop On Organic Agriculture, University Of Mauritius, Reduit, 1-07 Dec 2016 Click to View Abstract
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17 | 2016 | 45. Organic Crop Production Practices: Crop Rotation, Multiple Cropping, Inter-planting, Companion Planting, Diversification Of Plant Species, Buffer Zoning. (2016) Training Workshop On Organic Agriculture, University Of Mauritius, Reduit, 1-07 Dec 2016 Click to View Abstract
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18 | 2016 | 46. Organic Crop Production- Nursery And Field Management/ Bio-intensive Tillage Practices /pre And Post Harvest Handling Of Organic Produce. (2016) Training Workshop On Organic Agriculture, University Of Mauritius, Reduit, 1-07 Dec 2016 Click to View Abstract
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19 | 2016 | 47. Management Of Pests, Diseases & Weeds.(2016) Training Workshop On Organic Agriculture, University Of Mauritius, Reduit, 1-07 Dec 2016 Click to View Abstract
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20 | 2016 | 48. Organic Certification: Standards, Record Keeping, Certification Process, Target Market, Logo/brand. (2016) Training Workshop On Organic Agriculture, University Of Mauritius, Reduit, 1-07 Dec 2016 Click to View Abstract
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21 | 2016 | 49. Organic Certification: Conversion Process. Training Workshop On Organic Agriculture, University Of Mauritius, Reduit, 1-07 Dec 2016 Click to View Abstract
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22 | 2016 | Nderitu, J. H. 2016. Principles Organic Agriculture Click to View Abstract
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23 | 2015 | Influence Of Cropping And Irrigation Systems On Population Fluctuation Of The African White Rice Stem Borer (Maliarpha Separatella Rag) And Damage On Rice. Journal Of Entomology, 2015 Click to View Abstract
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24 | 2015 | Alogit Analysis Of Farmer Knowledge On Rice Blast Disease Pyricularia Grisea [Cook, Sacc] At Mwea Irrigation Scheme, Kirinyaga County, Central Province, Kenya Click to View Abstract
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25 | 2015 | The Potato Sector In Kenya – Key Insights, Challenges, Opportunities And Lessons Learned Potato Dialogue Platform 14th To 17th September, 2015,Giz, Bonn, Germany Click to View Abstract
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26 | 2015 | Assessment Of Yield Loss Caused By The African White Rice Stem Borer (Maliarpha Separatella Rag (Lepidoptera: Pyralidae) At Mwea Irrigation Scheme, Kirinyaga County, Kenya. Journal Of Entomology, 2015 Click to View Abstract
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27 | 2015 | Prolonging The Shelf-life Of Seed Potato Tubers At Farm Level: Cold Storage Or Diffused Light Store Click to View Abstract
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28 | 2015 | Fruits Of Our Toil Click to View Abstract
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29 | 2015 | Potato Power Point Presentation On Potato Click to View Abstract
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30 | 2015 | Diversity And Abundance Of Native Bees Foraging On Hedgerow Plants In The Kakamega Farmlands, Click to View Abstract
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31 | 2015 | EXPLORING OPPORTUNITIES OF INFORMATION AND COMMUNICATION TECHNOLOGIES (ICTS) IN HIGHER AGRICULTURAL EDUCATION ENROLMENT IN KENYA Click to View Abstract
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32 | 2015 | Management Bean Pests Click to View Abstract
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33 | 2014 | Feasibility Of Low-Cost Seed Potato Storage In Kenya: The Case Of Diffused Light Storage In Nyandarua County. Click to View Abstract
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34 | 2014 | Yield Performance Of Potato Seed Tubers After Storage In A Diffuse Light Store (DLS). Journal Of Agricultural Sciences. Volume 6(1): 21-28 Click to View Abstract
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35 | 2014 | Management Of Thrips In French Bean By Integrating Biological And Synthetic Pesticides In Conventional Spray Regimes Click to View Abstract
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36 | 2014 | Ecological Approaches: Entomological Diversity Including Pollinators Click to View Abstract
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37 | 2014 | Status, Challenges And Marketing Opportunities For Canning Navy Bean In Kenya Click to View Abstract
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38 | 2014 | Bernard Ouma, James Muthomi, John Nderitu, John H. Nderitu, Faith Torotich (2014). Pest Management Practices And Compliance To Market Stawndards Among French Bean Farmers. 14th Conference On HAK, Nairobi, 1-5th December 2014 Click to View Abstract
PEST MANAGEMENT PRACTICES AND COMPLIANCE TO MARKET STANDARDS AMONG FRENCH BEAN FARMERS
Bernard Ouma, James Muthomi, John Nderitu2 and Faith Toroitich
Department of Plant Science and Crop Protection, University of Nairobi, P. O. Box 30197-00100, Nairobi, Kenya
2. Mount Kenya University, P. O. Box 342-01000, Thika, Kenya
Abstract
The EU commission increased to 10% sampling and pesticide residue analysis of French beans and peas imported from Kenya. This resulted in a 25% dip in bean sales in January 2013. This study aimed at determining pest management strategies used by small scale French bean farmers. A survey to determine farmers’ pest management practices was done in Embu east and Mwea east district, where 32 and 38 farmers were from Embu east and Mwea east, respectively. The farmers considered French beans farming as an important source of income, and up to 50% of the farmers had been in French beans production for a period of three years and more. Most of farmers in the study area entirely relied on synthetic pesticides for pest and disease control. White fly was the major insect pest while rust was the major disease as identified by the majority of farmers. Less than 30% of the farmers were involved in the implementation of GLOBALGAP, with 3.1% of the farmers being certified. The findings showed that farmer’s pest management practices were incompatible with good agricultural practices and export market standards. There is a need to sensitize farmers on the use of alternative pest management strategies and requirements of the export market standards.
Key words: French beans, export market requirements, maximum residue levels, Global G.A.P
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39 | 2014 | Efficacy Of Potassium Salts Of Fatty Acides In The Management Of Thrips And Whiteflies On Snapbeans Click to View Abstract
EFFICACY OF POTASSIUM SALTS OF FATTY ACIDS IN THE MANAGEMENT OF THRIPS AND WHITEFLIES ON SNAP BEANS
G. O. Wafula*, J. W. Muthomi, J. H. Nderitu and G. N. Chemining’wa
Department of Plant Science and Crop Protection,University of Nairobi. P. O Box 29053-00625 Kangemi, Nairobi, Kenya
Email: ongoya@gmail.com, Tel. 0723144690
Abstract
Snap bean farmers mainly rely on chemical pesticides to manage insect pests and diseases but the introduction of strict maximum residue levels (MRLs) by European markets pose a challenge to the use of pesticides. This has necessitated the search for alternative pest management options that do harmful residues on produce. Therefore, this study was carried out to determine the efficacy of potassium salts of fatty acids as alternative to synthetic chemicals in the management of snap bean pests. Field experiments were carried out in farmers’ fields in Mwea and Embu in 2013 for two cropping cycles. Potassium salts of fatty acids at 0.5%, 1% and 1.5% spray solution were applied weekly starting from three weeks after emergence (WAE) until early podding. The efficacy of the different concentrations was evaluated by assessing population of thrips, whitefly, and pest damaged pods, in addition to pod yield.. The application of potassium salts of fatty acids at 1% and 1.5% of spray solution significantly (P<0.05) reduced white fly and thrips populations by up to 61% and 69% respectively. Pod damage due to thrips was also significantly (P<0.05) reduced by up to 83% and marketable pod yield was significantly (P<0.05) increased by up to 151%. The results demonstrated that potassium salts of fatty acids are a viable alternative to synthetic chemical pesticides thereby enabling farmers to meet the strict European markets maximum residue level requirements.
Key words: Phaseolus vulgaris L., potassium salts of fatty acids, pesticide residues, market access
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40 | 2014 | G. O. Wafula, J. W. Muthomi, J. H. Nderitu And G. N. Chemining'wa (2014). Management Of Snapbean Pests By Integrated Seed Dressing, Foliar Sprays And Intercropping With Maize. Conference On HAK, Nairobi, 1-5th December 2014 Click to View Abstract
MANAGEMENT OF SNAP BEAN PESTS BY INTEGRATING SEED DRESSING, FOLIAR SPRAYS AND INTERCROPPING WITH MAIZE
G. O. Wafula*, J. W. Muthomi, J. H. Nderitu2 and G. N. Chemining’wa
Department of Plant Science and Crop Protection,University of Nairobi. P. O Box 29053-00625 Kangemi, Nairobi, Kenya
2. Mount Kenya University, P. O. Box 342-01000, Thika, Kenya
Email: ongoya@gmail.com, Tel. 0723144690
Abstract
Insect pests remain a major constratint in the production of snap beans and farmers mainly rely on chemical pesticides to manage the insect pests and diseases. However, the introduction of maximum residue levels (MRLs) for export vegetables by European markets pose a challenge to the use of pesticides. This study was carried out to develop sustainable options of managing snap bean pests and reducing chemical residues on snap bean produce.
Field experiments were carried out in farmers’ fields in Mwea and Embu from July 2013 to January 2014 for two planting cycles under irrigation. The integrated pest management strategies evaluated included: i) seed dressing only, ii) seed dressing followed by three neem sprays, iii) seed dressing followed by two pyrethrid sprays and one neem spray, iv) seed dressing followed by three pyrethrin sprays and intercropping snap bean with maize, v) seed dressing followed by two pyrethrin sprays plus one spray with a biological product, vi) seed dressing followed by two neem sprays plus one spray with a biological product, and vii) two pyrethrin sprays and one neem spray only. The data collected included: emergence, plant stand, nodulation, thrips population, bean stem maggot population, whitefly population, yield and pest damage. The combination of seed dressing, two pyrethrin sprays and neem applied at the vegetative stage, early flowering and early podding reduced white fly and thrips population by up to 54% and 60% respectively. Similar results were also observed on plots where seeds dressing was done before planting combined with intercropping with maize plus three pyrethrin sprays at the vegetative stage, early flowering and early podding. Seed dressing had a direct effect on the bean stem maggots that attack the seedling at a very young stage. Spraying with pyrethrin sprays had a quick knockdown effect on the population of whitefly and thrips while the maize intercrop also reduced the pest population. These options also reduced pod damage due to thrips by up to 75 and 93% and increased yield of extra-fine by up to 157 and 162% and fine pods by up to 148 and 133%. The results showed that seed dressing followed by two pesthrin sprays at the vegetative stage and early flowering stage plus a single spray with Nimbecidine at early podding, sprays and intercropping with maize were effective in managing snap bean pests. This demonstrates that integrated pest management options would be viable alternatives to chemical pesticides thereby enabling farmers meet the strict maximum chemical residue level requirements set by European consumers.
Key words: Phaseolus vulgaris L, seed dressing, bio-pesticides, intercropping, integrated pest management
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41 | 2014 | Effect Of Incorporating Lablab Biomass In Soils On Root Rot Disease Complex And Yield Of Beans Intercropped With Maize Click to View Abstract
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42 | 2014 | Susceptibility Of Geographically Isolated Populations Of The Tomato Red Spider Mite (Tetranychus Evansi To Commonly Used Acaricides On Tomato Crops In Kenya Click to View Abstract
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43 | 2014 | Report On NCST Seed Potato Project Click to View Abstract
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44 | 2014 | Enhancing Production, Postharvest Handling, Value Addition And Marketing Of Indigenous Vegetables (Cowpea, Nightshade, Pumpkin, Amaranth, Spider Plant), Mushrooms And French Beans Among Smallholder Farmers In Kenya Click to View Abstract
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45 | 2014 | Challenges And Opportunities In Production And Marketing Of Ware And Seed Potatoes Click to View Abstract
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46 | 2014 | CHALLENGES AND OPPORTUNITIES IN PRODUCTION AND MARKETING OF POTATOES Click to View Abstract
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47 | 2014 | Enhancing Production, Postharvest Handling, Value Addition And Marketing Of Indigenous Vegetables (Cowpea, Nightshade, Pumpkin, Amaranth, Spider Plant), Mushrooms And French Beans Among Smallholder Farmers In Kenya Click to View Abstract
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48 | 2013 | Competitiveness Of Smallholder Snap Bean Production In Kirinyaga County, Kenya Click to View Abstract
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49 | 2013 | Mass Production Of Entomopathogenic Nematodes Using Silkworm (Bombyx Mori L.) For Management Of Key Agricultural Pests Click to View Abstract
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50 | 2013 | Policy Implementation And Its Economic Impact On Potato Marketing Value Chain In Kenya Click to View Abstract
Potatoes (Solanum tuberosum L.) are second in importance after maize in Kenya as food crop. It is grown mainly by small scale farmers in more than 100,000 ha country wide producing more than 1 million tonnes annually. The marketing value chain has been described as ineffective, with farmers getting far much lesser compared with other players. Recognizing this, the Government of Kenya developed laws in 2005 to streamline the chain and ensure farmers gain from the potato production. It also established some specific laws in 2008 to interpret the 2005 laws in target chain levels. This study was carried out between December 2009 and February 2010 to monitor implementation, enforcement and economic impact of legal notice no. 113 of 2008 of the Government of Kenya using formal questionnaires administered to traders and farmers in selected seven markets and regions. Information was also obtained from focused group discussions as well as stakeholder participation in a workshop. The findings show that traders and farmers are aware of the regulations but are not implementing them. Farmers had higher (97%) knowledge of regulations compared with traders (92%). The major reasons cited by farmers for not being able to implement the regulations included cartels, lack of storage facilities and information about the potato production costs and prevailing market prices at any given time. Calculations show that the contribution of potatoes to the Kenyan economy is 300% higher than what is in government records. This study provides more evidence of the effect of the legal notice on the potato marketing value chain in Kenya and policy recommendations to ensure enforcement of the regulations and streamline the potato value chain.
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51 | 2013 | Management Of Potato Viruses In Seed Potato Production Using Border Crops Click to View Abstract
Field experiments were conducted over two croppi ng seasons to investigate the effectiveness of border crops in managing potato aphids and the associated viruses in seed potato production. Potato plots were surrounded with maize, sorghum and wheat borde rs. Aphid population was monitored on leaves and on yellow sticky traps. Other data collected included virus disease incidence and tuber yield. The border crops reduced aphid popula tion on leaves compared to non-bordered potato plots. More alate aphids we re caught on yellow sticky traps placed inside potato plots than on traps placed inside the border crops. In addition, virus disease incidence was reduced in all plots surrounded by the border cr ops. However, plots surrounded by border crops had reduced tuber yield, although the yield of s eed grade was increased. The results indicated that use of border crops would be beneficial in the management of virus diseases in small-holder seed potato production.
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52 | 2013 | Management Of Maliarpha Separatella Rag Using Effective Entomopathogenic Nematodes And Resistant Rice Cultivars. Journal Of Entomology,10: 103-1 Click to View Abstract
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53 | 2013 | A Logit Analysis Of Farmer’ Knowledge Of African White Rice Stem Borer, Maliarpha Separatella Rag At Mwea Irrigation Scheme, Kirinyaga County, Central Province, Kenya Click to View Abstract
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54 | 2013 | Assessment Of Yield Loss Caused By Maliarpha Separatella Rag.on Rice At Mwea, Kirinyaga County, Kenya. Mount Kenya University Annual Research And Innovation Confer Click to View Abstract
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55 | 2013 | Integrating Biological, Synthetic And Botanical Pesticides On Thrips Population And Yield Of French Beans. Click to View Abstract
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56 | 2013 | Mat Rehabilitation Of Banana Xanthomonas Wilt Infected Orchards In Epidemic Areas Of Western Kenya. Mount Kenya University Annual Research And Innovation Confer Click to View Abstract
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57 | 2013 | Yield Performance Of Potato Seed Tubers After Long Storage In A Diffuse Light Store (DLS) Click to View Abstract
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58 | 2013 | Mugambi, I. K.1, Muthomi, J. W., Ojiem, J., Chemining’wa, G. N. And Nderitu, J. H. (2013). Effect Of Incorporating Lablab Residues On Bean Root Rot And Chafer Grub (2013. Mount Kenya University Annual Research And Innova Click to View Abstract
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59 | 2013 | Nderitu, J. H., Wahome, R. Okemo, P. (2013). Current Status And Proposed Postgraduate Training Model For East Africa Universities. Mount Kenya University Annual Research And Innovation Conference, Nairobi, 28th-30th Augus Click to View Abstract
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60 | 2013 | Factors That Influence Enrolment In Agriculture And Related Sciences In Public Universities In Kenya Click to View Abstract
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61 | 2013 | Evaluation Of Information And Communication Technology (2013). Utilization By Small Holder Banana Farmers In Gatanga District, Kenya. Journal Of Agricultural Education And Extension. 1-15. Click to View Abstract
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62 | 2013 | Status And Spread Of Banana Xanthomonas Wilt In Kenya Click to View Abstract
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63 | 2013 | Management Of Snap Bean Pests By Integrating Seed Dressing, Foliar Sprays And Intercropping With Maize. Hak Conference, Meru, Kenya, 3rd-6th December 2013 Click to View Abstract
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64 | 2013 | Ochilo, W., Nyamasyo, G. & Nderitu, J. (2013). Impact Of Soil Fertility Management Practices On A Major Insect Pest And Yield Of Beans (Phaseolus Vulgaris L.) In Taita District, Kenya. African Journal Of Food, Nutrition And Development, 13(5): 8340-83 Click to View Abstract
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65 | 2013 | Nderitu, John H. And Arshfod Njenga (2013). Implementation Of Value Chain Development Training Curricula At Selected Universities In Kenya ( January 2013). PSDA/GIZ, Nairobi, Kenya Click to View Abstract
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66 | 2013 | Opportunity For University Intervention In Upgrading Animal Health Service Industry (2013). Workshop Proceedings, REGAL-AG/ACDI/VOCA, Kenya, MKU, August 2013, Marsabit, Kenya Click to View Abstract
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67 | 2013 | K. K. Mutundu, J. H. Nderitu, D. Mureithi, H. Wainaina, B. Ayugi (2013). Baseline Survey On Interventions In Upgrading Animal Health And Production In ASALS Of Marsabit County, Marsabit, Kenya Click to View Abstract
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68 | 2013 | Evaluation Of Rice Genotypes For Susceptibility To African White Rice Stem Borer, Maliarpha Separatella Rag. Click to View Abstract
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69 | 2013 | PROCEEDINGS OF STAKEHOLDERS’ CONSULTATIVE WORKSHOP ONOPPORTUNITIES FOR INTERVENTION IN UPGRADING ANIMAL HEALTH SERVICE INDUSTRY IN ASALs OF KENYA Click to View Abstract
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70 | 2013 | A Logit Analysis Of Farmer’ Knowledge Of African White Rice Stem Borer, Maliarpha Separatella Rag At Mwea Irrigation Scheme, Kirinyaga County, Central Province, Kenya Click to View Abstract
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71 | 2013 | FIRST INTERNATIONAL RESEARCH AND INNOVATION CONFERENCE Click to View Abstract
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72 | 2013 | THE STRUGGLE FOR BETTER TERMS AND CONDITIONS OF SERVICE FOR PUBLIC UNIVERSITY LECTURERS IN KENYA, 2013-2014. Prof John H. Nderitu University Of Nairobi Click to View Abstract
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73 | 2013 | The Importance Of African Honey Bees (Apis Mellifera L.) As Pollinators Of High Value Crops In Kenya: A Case Of Butternut Squash (Cucurbita Moschata Duchsne Ex Poir.) Pollination. Click to View Abstract
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74 | 2013 | TOWARDS ACHIEVING A KNOWLEDGE ECONOMY THROUGH RESEARCH AND INNOVATION Click to View Abstract
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75 | 2013 | Evaluation Of Safe Pesticides And Varieties For Management Of Insect Pests In Snap Beans In Kenya Click to View Abstract
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76 | 2013 | BIO-ECOLOGY AND MANAGEMENT OF AFRICAN WHITE RICE STEM BORER, MALIARPHA SEPARATELLA RAGONOT (LEPIDOPTERA: PYRALIDAE) AT MWEA IRRIGATION SCHEME, KENYA Click to View Abstract
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77 | 2013 | Enhanced Legume Productivity Through Incorporation Of Lablab Residues And Use Of Legume Species Tolerant To Root Rot Disease Complex Click to View Abstract
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78 | 2013 | MANAGEMENT OF THRIPS IN FRENCH BEANS BY USE OF INTEGRATED PESTICIDE APPLICATION REGIMES IN EMBU EAST AND MWEA EAST DISTRICTS Click to View Abstract
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79 | 2013 | Effect Of Nutrient Management And Moisture Conservation Practices On Growth, Yield And Quality Of Snap Bean (phaseolus Vulgaris L.) In Central Kenya Click to View Abstract
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80 | 2013 | ANNUAL PLANNING WORKSHOP FOR NCST SEED POTATO PROJECT Click to View Abstract
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81 | 2013 | KAPAP Vegetables VC Proposal 2ND PHASE- 30-10-2013 Click to View Abstract
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82 | 2013 | Research And Development In Mount Kenya University Click to View Abstract
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83 | 2013 | Management Of Thrips Click to View Abstract
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84 | 2013 | BIOLOGICAL CONTROL OF MYZUS PERSICAE AND APHIS GOSSYPII ON POTATO CROP (SOLANUM TUBEROSUM L) IN KENYA Click to View Abstract
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85 | 2012 | Effect Ofsoil Fertility Amendments With Nitrogen, Phosphorus And Farmyard Manure On Crop Nutrient Contents, Bean Stem Maggot Infestation And Yield Of Common Beans (Phaseolus Vulgaris (L.) In Western Kenya Click to View Abstract
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86 | 2012 | On‐farm Seed Potato Storage Practices In Kenya: A Case Study Of Nyandarua Click to View Abstract
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87 | 2012 | Functional Responses Of Cheilomenes Propingua, C. Lunata And C. Sulphurea (Coleoptera: Coccinellidae) To Predation On Aphis Gossypii (Homoptera: Aphididae) In Eastern Tanzania Click to View Abstract
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88 | 2012 | ASSESSMENT OF YIELD LOSS CAUSED BY MALIARPHA SEPARATELLA RAG. ON RICE AT MWEA, KIRINYAGACOUNTY, KENYA 1Kega, V.M., J.H Nderitu2,F. Olubayo3 And M. Kasina4 1Kenya Agricultural Research Institute- Mwea Click to View Abstract
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89 | 2012 | TASKFORCE REPORT ON MKU POSTGRADUATE TRAINING Click to View Abstract
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90 | 2012 | Management Of Thrips ( Thrips Tabaci ) In Bulb Onion By Use Of Vegetable Intercrops Click to View Abstract
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91 | 2012 | Determination Of Levels Of Striga Germination Stimulants For Maize Gene Bank Accessions And Elite Inbred Lines. Click to View Abstract
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92 | 2012 | Effect Of Grain Moisture Content And Storage Time On Efficacy Of Inert And Botanical Dusts For The Control Of Sitophilus Zeamais In Stored Maize Click to View Abstract
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93 | 2012 | Yield_performance_of_potatoseed_tubers_after_long_storage_in__a_difuse_light_store Click to View Abstract
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94 | 2012 | Proceedings Of The Seed Potato Project Planning Workshop Held At AIRC KARI Click to View Abstract
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95 | 2012 | CURRICULA FOR AGRICULTURAL VALUE CHAIN DEVELOPMENT FOR UNIVERSITIES AND COLLEGES Click to View Abstract
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96 | 2012 | RECORD MANAGEMENT IN UNIVERSITY INSTITUTIONS Click to View Abstract
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97 | 2012 | Efficacy Of Potassium Salts In Management Of Thrips Click to View Abstract
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98 | 2012 | Snap Bean Integrated Crop Management Booklet Click to View Abstract
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99 | 2011 | Spatial Arrangement Of Maize As Border Crop To Manage Aphids And Aphid-Transmitted Viruses In Potato Click to View Abstract
Field experiments were conducted over two growing seasons to determine the effect of spatial arrangement of maize as border crop to manage aphid infestation and aphid-transmitted virus diseases in potato (Solanum tuberosum L.). Maize was planted at a distance of 0.5, 1.0, 1.5, 2.0, 2.5 and 3.0 m from the potato crop. Aphid infestation and incidence of virus infection was monitored over the growth period of potato. Aphids were recorded on potato leaves and in water pan traps while virus infection was determined by visual symptoms on the potato plant. At harvest, potato tubers were graded into ware, seed, and chatts and weighed. The results show that placement of maize border up to 0.5 m and 1.0 m reduced aphid population and virus disease incidence by up to 48%. The maize borders had no effect on the yield of seed potato grade but only on the ware. Placing maize border at 0.5m had the greatest reduction of ware potato yield by 48%. Maize borders placed up to 1m from the potato crop would be effective in the management of potato aphids and aphid-transmitted virus diseases. This study shows that the technology would be ideal for propagation plots in small scale seed potato production.
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100 | 2011 | Commercialization Of Patented Herbal Medicinal Products In Kenya Click to View Abstract
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101 | 2011 | Effect Of Varying Inorganic Nitrogen Fertilizer Regimes On Growth, Yield And Quality Of Snapbeans. Click to View Abstract
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102 | 2011 | Integrated Management Of Aphid-transmitted Viruses In Potato (Solanum Tuberosum L.) Click to View Abstract
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103 | 2011 | Management Of Thrips In Bulb Onions Using Vegetable Intercrops Click to View Abstract
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104 | 2011 | Proceeding Of The National Public Debate On GMO Click to View Abstract
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105 | 2011 | Status, Constraints And Marketing Opportunities For Canning Navy Beans In Kenya Click to View Abstract
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106 | 2011 | Resistance Of Potato Varieties To Potato Tubermoth (phthorimaea Opercullela (Zeller). ). Click to View Abstract
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107 | 2011 | Farmers Ethno- Ecological Knowledge Of The Termite Problem In Semi-arid Nakasongola Click to View Abstract
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108 | 2011 | CURRICULA FOR AGRICULTURAL VALUE CHAIN DEVELOPMENT FOR UNIVERSITIES AND COLLEGES DEVELOPED BY GESELLSCHAFT FUER INTERNATIONALE ZUSAMMENARBEIT (GIZ), PROMOTION OF PRIVATE SECTOR DEVELOPMENT IN AGRICULTURE (PSDA) AND KENYAN Click to View Abstract
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109 | 2011 | Thumbnail Evaluation Of Drought Tolerance Mechanisms In Mesoamerican Dry Bean Genotypes Click to View Abstract
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110 | 2011 | Spatial And Temporal Fluctuation Of Malliarpha Separatella Rogonot , Lepidoptera: Pyralidae At Mwea Irrigation Scheme Click to View Abstract
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111 | 2011 | Effect Of Intercropping Bulb Onion And Vegetables On Purple Brotch And Downy Mildew Click to View Abstract
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112 | 2011 | Status, Constraints And Marketing Opportunities For Canning Navy Beans In Kenya. Click to View Abstract
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113 | 2011 | Effect Of Varying Inorganic Nitrogen Fertilizer Regimes On Growth, Yield And Quality Of Snapbeans. Click to View Abstract
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114 | 2011 | Efficacy Of Locally Available Materials And Bio-control Agents In The Management Of Potato Tubermoth (Phthorimaea Opercullela (Zeller). Click to View Abstract
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115 | 2011 | Evaluation Of Neonicotinoid Seed Dressing Formulations For Control Of Bean Fly (OPhiomyia Spp.) In Snapbeans In Mwea, Central Kenya Click to View Abstract
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116 | 2011 | Effect Of Biotic And Aboitic Factors On Composition And Foraging Intensity Of Subterranean Termites. Click to View Abstract
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117 | 2011 | Integrated Management Of Aphid-transmitted Viruses In Potato (Solanum Tuberosum L.). Click to View Abstract
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118 | 2011 | Proceeding Of The First Consultative Forum On Commercialization Of Patented Herbal Medicinal Products In Kenya, Click to View Abstract
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119 | 2011 | Distribution Of Potato Tuber Moth (Phthorimea Opercullela (Zeller) And Damage Caused By Potato Tubers (Solanum Tuberosum L.) In Farmers Stores Agro 2011 Biennial Conference, UON, Nair Click to View Abstract
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120 | 2011 | Field Evaluation Of Foliar And Soil Insecticides For The Control Of Aphis Gossypii Glover (Homoptera: Aphididae) On Potatoes In Kenya Click to View Abstract
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121 | 2011 | PROCEEDINGS OF THE LAUNCH OF ON-FARM SEED POTATO STORAGE Click to View Abstract
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122 | 2011 | USE OF NEONICOTINOID INSECTICIDES AND VARIETAL RESISTANCE TO MANAGE BEAN FLY (OPHIOMYIA SPP.) AND OTHER ARTHROPOD PESTS OF SNAP BEAN (PHASEOLUS VULGARIS L.) Click to View Abstract
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123 | 2011 | EFFICACY OF Steinernema Karii AND Heterohabditis. Indica NEMATODES IN THE MANAGEMENT OF THE SWEET POTATO WEEVIL ( Cylas Puncticollis) IN KIBWEZI Click to View Abstract
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124 | 2010 | Baseline Survey For Status Of Banana Xanthomonas Wilt In Kenya Click to View Abstract
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125 | 2010 | Biological Control Agents Of Aphids (Homoptera: Aphididae) On Potatoes(Solanum Tuberosum L.) In Kenya. Click to View Abstract
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126 | 2010 | Effects Of Soil Texture On Virulence And Survival Of Steinernema Karii And Heterorhabditis Indica Click to View Abstract
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127 | 2010 | Mainstreaming And Institutionalization Of Value Chain Approach. Round Table Discussion On Agricultural Value Chain Click to View Abstract
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128 | 2010 | Screening Gene Bank Maize Accessions For Straiga Hermontica Resistance Click to View Abstract
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129 | 2010 | Some Aspects Of Squash ( Cucurbita Pepo L.) Pollination Ecology In Kenya Click to View Abstract
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130 | 2010 | MONITORING AND EVALUATION OF IMPLEMENTATION OF LEGAL NOTICE NO. 113 OF 5TH SEPTEMBER 2008 (THE LOCAL GOVERNMENT (ADOPTIVE BY-LAWS) (AGRICULTURAL PRODUCE) (STANDARD WEIGHT OF PACKAGES) ORDER, 2008) Click to View Abstract
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131 | 2010 | Evaluation Of Chilo Partellus And Busseola Fusca Susceptibility To Endotoxin In Bt Maize Click to View Abstract
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132 | 2010 | Evaluation Of Border Crops Against Infestation And Damage Of Cabbage By Diamond Back Moth (Plutella Xylostella) Click to View Abstract
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133 | 2010 | Effectiveness Of Entomopathogenic Nematodes Against Sweet Potato Weevil (Cylas Puncticollis Boheman (Coleoptera: Apionidae)] Under Semi-Field Conditions In Kenya Click to View Abstract
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134 | 2010 | Some Aspects Of Squash(Cucurbita Pepo L.) Pollination Ecology In Kenya. Click to View Abstract
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135 | 2010 | Effect Of Maize Border Crop Placement Distance On Aphid Population And Aphid-transmitted Virus Diseases In Potato. Click to View Abstract
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136 | 2010 | Pest Management Plan (PMP) For Arid And Semi-arid Areas In Kenya. World Bank, Nairobi Click to View Abstract
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137 | 2010 | PEST MANAGEMENT PLAN FOR KENYA ARID AND SEMI-ARID LANDS SWAp Click to View Abstract
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138 | 2010 | DEBATE ON BIOSAFETY BILL AND GENETICALLY MODIFIED ORGANISMS Click to View Abstract
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139 | 2010 | Yield_performance_of_potato Clones With Durable Resistance To Late Blight Click to View Abstract
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140 | 2010 | Contribution Of Bees To Pollination Of Sunflower Click to View Abstract
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141 | 2009 | Use Of Cereal Border Crops In Management Of Aphid-transmitted Viral Diseases During Seed Potato (Solanum Tuberosum) Production Click to View Abstract
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142 | 2009 | Survey, Biology And Control Of Agromyzid Beanflies In Common Beans (Phaseolus Vulgaris L.) In Kenya Click to View Abstract
The common beans are the most widely grown pulses in Kenya. They are intercropped with such crops as maize, sorghum, cassava, in high and low potential areas. They are consumed as green leaves, green pods and dry beans and form an economic source of protein to the bulk of Kenya population. However, despite their importance as a major source of protein, their yields are variable for a number of reasons. One of the major limitations to obtaining high yields include insect pests. Among the pests of the beans, certain agromyzid beanflies have been reported to cause heavy losses to beans in Kenya. The control measures for the beanflies include mainly seed treatment with aldrin or dieldrin. However, these insecticides are being withdrawn because of their persistence in the environment. Therefore, the objectives of the research project are as follows: 1) to map the distribution of beanflies in bean growing areas in Kenya in four cropping seasons. 2) to identify the losses of common beans due to beanflies in farmers fields in four seasons. 3) To relate the biology of beanflies to the growth stages of the common beans grown in the field for two seasons. 4) to determine the effectiveness of the insecticides and natural enemies in the control of beanflies on common beans grown in the field for four seasons. 5) to investigate the incidence of beanflies and its natural enemies in different cropping patterns of common beans grown in the field for four seasons. 6) To evaluate soil, seed, foliar and spray treatments for control of beanflies. The project will evolve an integrated control strategy of beanflies for the poor resource farmer. The results will be obtained by undertaking a survey in farmers fields, field and laboratory experiments at the research centres. The cost for all the research activities will be U$12,588. The project is expected to take two years
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143 | 2009 | Effect Of Rhizobia Inoculation, Farm Yard Manure And Nitrogen Fertilizers On Nodulation And Yield Of Food Grain Legumes Click to View Abstract
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144 | 2009 | Seed Potato Production And Occurrence Of Transmitted Viruses In Nyandarua District. 7th Workshop On Sustainable Horticultural Production In The Tropics. Universit Click to View Abstract
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145 | 2009 | Incidence Of Aphid-transmitted Viruses In Farmer-based Seed Potato Tubers In Kenya Click to View Abstract
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146 | 2009 | Combining Ability Among Twenty Insect Resistant Maize Inbred Lines Resistant To Chilo Partellus And Busseola Fusca Stem Borers. International Journal Of Plant Production Click to View Abstract
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147 | 2009 | With-plant Distribution And Seasonal Population Dynamics Of Flower Thrips (Thysanoptera: Thripidae) Infesting French Beans (Phaseolus Vulgaris L.) In Kenya Click to View Abstract
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148 | 2009 | Curriculum Development And Approval Process Click to View Abstract
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149 | 2009 | IPM Framework For KAPAP Projects, KAPAP, Nairobi, Kenya Click to View Abstract
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150 | 2009 | Insects Associated With Sweet Potatoes (Ipomea Batata (L) Lamk) In Eastern Kenya Click to View Abstract
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151 | 2009 | Evaluation Of Cropping Systems As A Strategy For Managing Flower Thrips In Kenya. Click to View Abstract
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152 | 2009 | Utilization Of Border Crops To Manage Aphid Colonization And PVY Incidence On Potato (Solanum Tuberosum L. Click to View Abstract
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153 | 2009 | Cultural And Agronomic Practices Used In Small Scale Potato (Solanum Tuberosum L) Production System In Kenya Click to View Abstract
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154 | 2009 | BRIDGING THE PUBLIC KNOWLEDGE DIVIDE:EXPERIENCES IN COMMUNICATING IN UNIVERSITIES Click to View Abstract
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155 | 2009 | EVALUATION OF BORDER CROPS AND VARIETAL RESISTANCE FOR THE MANAGEMENT OF DIAMONDBACK MOTH (Plutella Xylostella L.) ON CABBAGE (Brassica Oleracea Var. Capitata) Click to View Abstract
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156 | 2009 | PROCEEDINGS OF THE NAVY BEAN PROJECT INCEPTION WORKSHOP Click to View Abstract
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157 | 2009 | BRIDGING THE PUBLIC KNOWLEDGE DIVIDE: EXPERIENCES IN COMMUNICATING IN UNIVERSITIES Click to View Abstract
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158 | 2008 | J. W. Muthomi; P. E. Otieno; G. N. Chemingw Click to View Abstract
OBJECTIVE: To determine the pattern of occurrence of dental injuries in the 0-15 year-olds. DESIGN: A retrospective study. SETTING: Kenyatta National Hospital, Nairobi. SUBJECTS: Five hundred and five patient records with dental injuries were retrieved and analysed. RESULTS: A total of 505 patient records with dental injuries were retrieved and analysed. Most of the injuries were recorded in the year 1999 (22.2%). Boys were more affected (63.0%) than girls (37.0%). The main presenting complaint recorded was pain (75.8%).The majority of the patients (69.5%) presented for treatment during the same day or the day after trauma. Falls were the leading cause of injuries (73.5%). Most injuries involved two teeth (47.1%) and the maxillary central incisors were the most affected teeth both in the primary (67.5%) and permanent (64.0%) dentitions. Luxation injuries were the most common type of dental trauma with 47.5% occurring in the permanent teeth and 77.3% in the primary teeth. The main radiographic investigation performed was intraoral periapical views (52.9%) following which dental extraction (34.4%) was the main treatment modality offered. CONCLUSION: Prospective cross-sectional studies to determine the prevalence of dental injuries are needed. Furthermore improving the knowledge of dental practitioners through continuing dental education programmes would help in updating them on current trends in managing these injuries. |
159 | 2008 | Agricultural Entomology: Learning Agricultural Entomology Through Practice, Equatops Trading Click to View Abstract
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160 | 2008 | Nderitu, J. H.; Nyamasyo, G. H. N; Kasina, J. M. URI: Http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/53194 Date: 2008 Show Full Item Record Files In This Item Files Size Format View There Are No Files Associated With This Item. This Item Click to View Abstract
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161 | 2008 | Virulence Of The Entomopathogenic Fungi Beauveria Bassiana And Metarhizium Anisopliae To Sweet Patato Weevil Cylas Puncticollis And Effects On Fecundity And Egg Viability Click to View Abstract
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162 | 2008 | Incorporation Of Green Manure Plants Into Bean Cropping Systems Contribute To Root-Knot Nematode Suppression Click to View Abstract
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163 | 2008 | Diversity Of Sunflower And Their Effect On Seed Yield In Makueni District, Eastern Kenya. Span Click to View Abstract
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164 | 2008 | Evaluating Of Synthetic And Neem-based Insecticides For Managing Aphids On Okra (Malvaceae) In Kenya Click to View Abstract
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165 | 2008 | Management Of Aphids And Aphid-transmitted Viruses In Stored Potatoes In Kenya. Click to View Abstract
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166 | 2008 | Factors Influencing The Occurrence Of Entomopathogenic Nematodes In The Central Rift Valley Region Of Kenya Click to View Abstract
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167 | 2008 | Management Of Potato Viruses In Seed Potato Production Using Border Crops Click to View Abstract
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168 | 2008 | Management Of Thrips (Thysanoptera; Thripidae) Infestation On French Beans (Phaseolus Vulgaris L.) In Kenya By Combination Of Insecticides And Varietal Resistance Click to View Abstract
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169 | 2008 | Evaluation Of French Bean(Phaseolus Vulgaris L.) Cultivars And Breeding Lines For Resistance To Thrips (Thysanoptera; Thripidae)Pests In Kenya Click to View Abstract
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170 | 2008 | Management Of Thrips (Thysanoptera; Thripidae) In Kenya; Economics Of Insecticide Applications Click to View Abstract
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171 | 2008 | Incidence Of Aphids And Aphid-transmitted Viruses In Farmer-based Seed Potato Production Click to View Abstract
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172 | 2008 | Nyamasyo, D. And Nderitu, J. H. (2004 ). Lecture Notes On Invertebrate Animals. Click to View Abstract
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173 | 2008 | Sweet Potato Weevil Management: An Integrated Approach Based On Entomopathogenic Nematodes, Insecticides And Cultural Practicess Click to View Abstract
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174 | 2008 | Use Of Cereal Border Crops In Management Of Aphid-transmitted Viral Diseases During Seed Potato (Solanum Tuberosum) Production Click to View Abstract
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175 | 2008 | HUMAN CAPACITY BUILDING AT UNIVERSITY OF NAIROBI FACULTY OF AGRICULTURE Click to View Abstract
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176 | 2008 | EVALUATION OF CROPPING SYSTEMS AND PESTICIDES AS STRATEGIES FOR MANAGING FLOWER THRIPS IN SNAP BEANS IN MWEA-TEBERE, CENTRAL KENYA Click to View Abstract
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177 | 2008 | HUMAN CAPACITY BUILDING AT UNIVERSITY OF NAIROBIFACULTY OF AGRICULTURE Click to View Abstract
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178 | 2007 | Muthomi, J.W.; Otieno P.E.; Chemining Click to View Abstract
OBJECTIVE: To determine the pattern of occurrence of dental injuries in the 0-15 year-olds. DESIGN: A retrospective study. SETTING: Kenyatta National Hospital, Nairobi. SUBJECTS: Five hundred and five patient records with dental injuries were retrieved and analysed. RESULTS: A total of 505 patient records with dental injuries were retrieved and analysed. Most of the injuries were recorded in the year 1999 (22.2%). Boys were more affected (63.0%) than girls (37.0%). The main presenting complaint recorded was pain (75.8%).The majority of the patients (69.5%) presented for treatment during the same day or the day after trauma. Falls were the leading cause of injuries (73.5%). Most injuries involved two teeth (47.1%) and the maxillary central incisors were the most affected teeth both in the primary (67.5%) and permanent (64.0%) dentitions. Luxation injuries were the most common type of dental trauma with 47.5% occurring in the permanent teeth and 77.3% in the primary teeth. The main radiographic investigation performed was intraoral periapical views (52.9%) following which dental extraction (34.4%) was the main treatment modality offered. CONCLUSION: Prospective cross-sectional studies to determine the prevalence of dental injuries are needed. Furthermore improving the knowledge of dental practitioners through continuing dental education programmes would help in updating them on current trends in managing these injuries. |
179 | 2007 | Effect Of Chemical Pesticide Spray On Insect Pests And Yield Of Food Grain Legumes Click to View Abstract
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180 | 2007 | Evaluation Of Pesticide/variety Combinations For Thrips (Thysanoptera: Thripidae) Management On French Beans (P. Vulgaris L.) In Kenya Click to View Abstract
A field study was undertaken to evaluate pesticide/variety combinations for thrips infestation and damage in Kabete Field Station, University of Nairobi, Kenya. Four French bean varieties (Amy, Monel, Samantha and Impala) and four insecticides (Lambda-cyhalothrin (Karate 1.75 EC), Petroleum spray oil (DC Tron 500 ML), Spinosad (Tracer 480 SC) and Fipronil (Regent 50 SC)) were used for the study. The study revealed that both the varieties and insecticides influenced thrips infestation independently. Tracer 480 SC and Regent 50 SC gave the lowest thrips numbers in all the varieties. The mean number of F. occidentalis in Karate 1.75 EC sprayed plots was higher and significantly different from plots sprayed with Tracer 480 SC and Regent 50 Sc. The mean number of M. sjostedti was not significantly different for all the plots sprayed with Tracer 480 SC, Regent 50 SC and Karate 1.75 EC. DC Tron 500 ML had no significant effect on thrips infestation.
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181 | 2007 | Response Of Snapbean To Inorganic N-fertilizer And Farm And Manure In Mwea Click to View Abstract
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182 | 2007 | Seed Potato Production And Occurrence Of Transmitted Viruses In Nyandarua District Click to View Abstract
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183 | 2007 | Use Of Green Manure Plants In Cropping Systems To Suppress Root-knot Nematodes Click to View Abstract
Green manure plants namely Calliandra calothyrsus, Canavalia ensiformis, Chenopodium quinoa, Crotalaria juncea, Desmodium uncinartum, Gliricidia sepium, Leucaena leucocephala, Mucuna pruriens, Tephrosia purpurea, Tithonia diversifolia and Vicia villosa were evaluated to determine their reaction to Meloidogyne javanica. Sesbania sesban and Tagetes minuta were included as susceptible and resistant checks respectively. In the glasshouse, pots were filled with steam-sterilized soil, sown with the green manure plant, and then infested with 4,000 eggs and juveniles of M. javanica. Field experiments were conducted in plots infested with a mixed population of M. javanica and M. incognita. Crotalaria juncea, D. uncinartum, G. sepium, L. leucocephala, M. pruriens, T. diversifolia and T. minuta had galling and eggmass indices lower than 2 and reduced nematode populations by up to 80%. Calliandra calothyrsus, C. quinoa and C. ensiformis had galling indices lower than 4 and eggmass indices less than 3.2. Vicia villosa and T. purpurea were susceptible with galling indices greater than 7 and nematode population buildup of up to 500%. Chenopodium quinoa, C. juncea, D. uncinartum, G. sepium, L. leucocephala, M. pruriens and T. diversifolia are suppressive to root-knot nematodes and can therefore be recommended as rotation, fallow or cover crops.
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184 | 2007 | Effects Ofinsecticides Applications On Sunflower (Helianthus Annuus L.) Pollination In East Kenya. Click to View Abstract
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185 | 2007 | Bees In Horticultural Crop Production; Revisiting The Sale Of Pollination In Crop Productivity Click to View Abstract
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186 | 2007 | Sweet Potato Weevil Management: An Integrated Approach Based On Entomopathogenic Nematodes, Insecticides And Cultural Practice. Proceedings Of The 1st KARI Mini Conference, KARI, Nairo Click to View Abstract
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187 | 2007 | Effect Of Root Rot Pathogens And Fungicide Seed Treatment On Nodulation In Food Grain Legumes. Click to View Abstract
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188 | 2006 | Combining Ability Among Twenty Insect Resistant Maize Inbred Lines Resistant To Chilo Partellus And Busseola Fusca Stem Borers Click to View Abstract
A partial diallel design was used among 20 maize inbred lines to form 110 F1 hybrids to generate information on the values of these lines for developing insect resistant maize varieties during the short rains season of 2006. The hybrids were evaluated for resistance to the C. partellus and B. fusca, and for agronomic performance over two seasons during long and short rains of 2007 at a mid-altitude dry early maturity site at KARI Kiboko, and the moist mid-altitude medium maturity site at KARI Embu. leaf damage score (using a scale of 1-9 where: 1= No damage and 9= extremely damaged), number of exit holes, cumulative tunnel length, and grain yield were measured as resistance traits. The genotype sum of square was partitioned into general combining ability (GCA) and specific combining ability (SCA) effects. Maize inbred lines with good general combining ability for insect resistance including maize inbred lines with significant and negative GCA`s for leaf damage were identified as lines 12,16,18,19 and 20 at Kiboko and lines 8, 17, 18, and 20 in Embu. Results showed that the problem of stem borers intensified by over 40% within four years in the experimental region of Eastern Kenya; currently mean yield loss due to stem borers was assessed to be about 56%. Several hybrids had significant negative SCA for leaf damage and significant positive SCA for grain yield. The maize inbred lines studied revealed their potential for use in breeding programs for insect resistance that could result in a correlated response for increased grain yield. Recurrent selection would be the best option to develop high yielding insect resistant germplasm for this region of Kenya considering that additive gene action were predominant. Evidently, it would be more difficult to develop host plant resistance to B. fusca than to C. partellus
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189 | 2006 | Evaluation Of Pesticide/variety Combinations For Thrips (Thysanoptera: Thripidae) Management On French Beans (P. Vulgaris L.) In Kenya Click to View Abstract
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190 | 2006 | Evaluation Of Companion Crops For Thrips (Thysanoptera: Thripidae) Management On French Bean, Phaseolus Vulgaris L. (Fabaceae) Click to View Abstract
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191 | 2006 | Evaluation Of Companion Crops For Thrips (Thysanoptera: Thripidae) Management On French Bean, Phaseolus Vulgaris L. (Fabaceae). Click to View Abstract
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192 | 2005 | Tende, R. M., J. H. Nderitu, Mugo, S., J. M. Songa, F. O. Olubayo And D. Bergvinson (2005). Screening For Development Of Resistance By The Spotted Stem Borer(Chilo Partellus) To Bt Maize. Click to View Abstract
OBJECTIVE: To determine the pattern of occurrence of dental injuries in the 0-15 year-olds. DESIGN: A retrospective study. SETTING: Kenyatta National Hospital, Nairobi. SUBJECTS: Five hundred and five patient records with dental injuries were retrieved and analysed. RESULTS: A total of 505 patient records with dental injuries were retrieved and analysed. Most of the injuries were recorded in the year 1999 (22.2%). Boys were more affected (63.0%) than girls (37.0%). The main presenting complaint recorded was pain (75.8%).The majority of the patients (69.5%) presented for treatment during the same day or the day after trauma. Falls were the leading cause of injuries (73.5%). Most injuries involved two teeth (47.1%) and the maxillary central incisors were the most affected teeth both in the primary (67.5%) and permanent (64.0%) dentitions. Luxation injuries were the most common type of dental trauma with 47.5% occurring in the permanent teeth and 77.3% in the primary teeth. The main radiographic investigation performed was intraoral periapical views (52.9%) following which dental extraction (34.4%) was the main treatment modality offered. CONCLUSION: Prospective cross-sectional studies to determine the prevalence of dental injuries are needed. Furthermore improving the knowledge of dental practitioners through continuing dental education programmes would help in updating them on current trends in managing these injuries. |
193 | 2005 | Comparative Resistance/tolerance Of Commercial Potato Cultivars In Kenya To Major Aphid Pests Click to View Abstract
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194 | 2005 | "Screening For Development Of Resistance By The Spotted Stem Borer, Chilo Partellus Swinhoe (Lepidoptera: Pyralidae) To Bt-maize Delta-endotoxins Click to View Abstract
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195 | 2005 | Comparative Resistance /tolerance Of Commercial Potato Cultivars In Kenya To Major Aphid Pests. Click to View Abstract
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196 | 2005 | Comparative Resistance /tolerance Of Commercial Potato Cultivars In Kenya To Major Aphid Pests Click to View Abstract
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197 | 2005 | Universities And Trade Unionsim Click to View Abstract
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198 | 2005 | Guidelines_for_postharvest_handling_of_some_fruits__vegetables_and_dry_grain Click to View Abstract
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199 | 2005 | AGRICULTURAL EDUCATION IN UNIVERSITIES BY YEAR 2030 Click to View Abstract
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200 | 2004 | Evaluation Of Variety Resistance As Amangement Srategy For Thrips (megalurothrips Sjostedti Trybom And Frankliniella Occidentalis Pergrande) On French Beans (phaseolus Vulgaris L.) Click to View Abstract
French bean, phaseolllus vulgaris l. is a major horticultural crop in kenya mainly grown for fresh export market. A major contraint in succesfull production of the crop is pests and diseases. thrips are considered as one of the major inscect pests attacking mainly flowers and causing losses of above 60percentage A lot of pesticides use and hence pesticide resideu has been attributed to thrips control. In view of the introduction of maximum pesticides level by importing countries, there is need to develope intergrated thrips mangement strategy with less pesticide use . Towards this goal, nine french beans varieties were evaluated for resistance to thrips (megalurothrips sjostedti frankliniella occidentalis)during the period (november 2001 to april 2002). This was done in two planting phases using randomised complete block design in four replicates. It was evident from the study that there significant diffrences in resistance to thrips by varieties. monel variety was found to be the most susceptibleand impala the least.Frankliniella occidentalis was more abadunt than megalurothrips sjostedti during the study period. The ratio of M . sjostedti to F. occidentalis on flowers was 1.5and 1.7 during the 1st and 2nd planting respectively.
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201 | 2004 | Effects Of Steinernema Kari And Heterohabditis Indica Against The Sweet Potato Weevil (Cylas Puncticollis). Click to View Abstract
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202 | 2004 | Major Insects Of Crops In Kenya Click to View Abstract
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203 | 2004 | Universities And Trade Unionisms . In “ Re- Invigorating The University Madate In A Globalising Environment Click to View Abstract
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204 | 2004 | Effects If Four Biopesticides On The Spider Mite Tetranychanus Evansi Baker And Pritchard In The Laboratory Click to View Abstract
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205 | 2004 | Major Insects Of Crops In Kenya Click to View Abstract
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206 | 2004 | Effects Of Steinernema Kari And Heterohabditis Indica Against The Sweet Potato Weevil (Cylas Puncticollis). Click to View Abstract
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207 | 2004 | EVALUATION OF VARIETAL RESISTANCE AND PESTICIDES AS MANAGEMENT STRATEGIES FOR THRIPS (Megalurothrips Sjostedti Trybom And Frankliniella Occidentalis Pergande) ON FRENCH BEANS (Phaseolus Vulgaris L.) Click to View Abstract
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208 | 2004 | EFFICACY OF Steinernema Karii AND Heterohabditis. Indica NEMATODES IN THE MANAGEMENT OF THE SWEET POTATO WEEVIL ( Cylas Puncticollis) IN KIBWEZI Click to View Abstract
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209 | 2003 | Field And Laboratory Investigations Onspiromesifen And Other Acaricides In The Control Of Red Spider Mites In Tomatoes; Click to View Abstract
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210 | 2003 | Importance And Scope Of Preventative Pest Management For Quarantine Compliance Of Kenyan Export Horticulture Produce At European Destinations. Click to View Abstract
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211 | 2003 | Perfomance Of Synthetic Insecticides, Neem (Azadirchta Indica ) Extract And Mineral Oils In Management Of Aphids And Viruses In Seed Potato In Kenya. Click to View Abstract
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212 | 2003 | The Status Of Potato Leafroll Virus In Kenya. Journal Of Plant Pathology. Click to View Abstract
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213 | 2003 | Effect Of Steinernema Kari And Heterobabditis Indica Against Sweet Potato Weevil Click to View Abstract
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214 | 2003 | Effect Of Steinernema Kari And Heterobabditis Indica Against Sweet Potato Weevil (Cylas Punticollis ). Click to View Abstract
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215 | 2003 | In: 9th Triennial Symposium For International Society For Tropical Root And Tuber Crops- Africa Branch, 31st October Click to View Abstract
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216 | 2003 | Agronomic_Guidelines_for_Organic Farming Click to View Abstract
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217 | 2003 | Potential_to_produce_organic_agricultural_products_for_export_market_from_teso_district_Western_Kenya Click to View Abstract
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218 | 2002 | Development Of An Integrated Aphid And Virus Disease Management Strategies For The Farmer-based Seed Potato Production System In Kenya Click to View Abstract
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219 | 2002 | Development Of An Integrated Pest Management (IPM) System For Thrips On Snapbeans (. Phaseolus Vulgaris L.) In Kenya Click to View Abstract
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220 | 2002 | Incidence Of Pests And Diseases In Farmer-based Seed Potato Production System In Kenya. Click to View Abstract
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221 | 2002 | Occurrence Of Four Major Potato Viruses In Three Main Potato Growing Areas In Kenya Click to View Abstract
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222 | 2002 | Pesticide Use And Implications In Horticultural Export Crops In Kenya Click to View Abstract
Horticultural exports earned Kenya 14 billion and 20 billion shillings in the years 2000 and 2001 respectively, from an estimated volume of 99 million tonnes and 93 million tonnes respectively. This indicates an increase in value of the exports, and makes horticulture the second highest foreign income earner after tea. Pesticides are a major production cost in the large-scale enterprises. Every year large amounts of pesticides are used to manage pests in horticulture, so as to ensure high quality production especially for export market. Local markets have also evolved as to demand high quality blemish free horticultural products. This has made farmers to increase use of pesticides and other agrochemicals. The types, quantities and market value of pesticides imported and sold for various crops would indicate the trend of pesticides usage in Kenya. The horticultural exports from this country are subject to stringent European Union (EU) requirements on Maximum Residue Levels (MRLs). The EU being the most important export destination, the issue of MRLs should urgently be addressed. Measures need to be put in place to ensure that Kenya does not lose its horticultural export niche. These may include, developing and devising crop protection strategies based on the farmers’ needs, strengthening various relevant institutions and developing sound pest management policies.
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223 | 2002 | Evaluation Of Varietal Resistance As A Management Strategy For Thrips(Megalurothrips Sjsotedti Trybom And Franliniella Occidentalis Pergrade) On French Bean, Phaseolus Vugaris L.). Click to View Abstract
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224 | 2002 | Valuation Of Varietal Resistance As A Management Strategy For Thrips(Megalurothrips Sjsotedti Trybom And Franliniella Occidentalis Pergrade) On French Bean, Phaseolus Vugaris L.) Click to View Abstract
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225 | 2002 | Incidence Of Pests And Diseases In Farmer-based Seed Potato Production System In Kenya. Click to View Abstract
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226 | 2002 | Pesticide Use And Implications In Horticultural Export Crops In Kenya. Click to View Abstract
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227 | 2002 | (Companion Cropping As An Integrated Pest Management(IPM) Component For Management Of Thrips In French Beans(Phaseolus Vulgaris L.) Click to View Abstract
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228 | 2002 | Towards_production_and_marketing_of_organic_produce_by_smallholdres_in_teso_district_western_kenya Click to View Abstract
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229 | 2002 | Sustainable_agricultural_production_and_marketing_by_small__holder_farmers_in_Mbeere_district.pdf Click to View Abstract
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230 | 2002 | Principles_and_practice_of_conservation_farming Click to View Abstract
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231 | 2001 | Controlling Field Pests. In “ Managing Dryland Resources: An Extension Manual For Eastern And Southern Africa Click to View Abstract
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232 | 2001 | Current French Bean Pests And Disease Management At Mwea-Tebere, Central Kenya. Workshop On Sustainable Horticultural Production In The Tropics Held On 2- 6 October Click to View Abstract
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233 | 2001 | Natural Enemies Associated With Arthropod Pests Of Pigeon Pea In Easter Africa. International Chickpea And Pigeon Pea Click to View Abstract
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234 | 2001 | Principles And Practice Of Conservation Farming. Click to View Abstract
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235 | 2001 | Controlling Field Pests Click to View Abstract
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236 | 2000 | A Case Study On Developing And Disseminating Integrated Pest Management Technologies For Bean Root Rots In Eastern And Central Africa. Click to View Abstract
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237 | 2000 | The Potential Of Organic Agriculture In Kenya. Click to View Abstract
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238 | 1999 | Challenges On Agricultural Information Dissemination And Networking: Case Of A Kenyan Ngo Programme. Click to View Abstract
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239 | 1999 | Natural Enemies Associated With Arthropod Pests Of Pigeon Pea In Easter Africa. Click to View Abstract
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240 | 1999 | Resistance Of Some Promising Potato Clones To Potato Leafroll Virus(PLRV) And Its Vectors, Myzus Persicae Sul. And -22- 22 Macrosiphum Euphorbiae Thom. Click to View Abstract
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241 | 1998 | Determination Of The Effect Of Nutrient Sources On Enhancement In Western Kenya Click to View Abstract
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242 | 1998 | Bean Research In Western Kenya: Lessons And Experiences Click to View Abstract
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243 | 1998 | Bean Research In Western Kenya: Lessons And Experiences. 2nd Biennial Crop Protection Conference Click to View Abstract
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244 | 1998 | Interaction Between Bean Stem Maggot And Bean Root Rot And Soil Fertility. Click to View Abstract
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245 | 1998 | A Survey Of Insect Pests And Farmers' Control Measures On Snapbeans In Kirinyaga District, Kenya.CIAT Publication No. 23. Click to View Abstract
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246 | 1998 | Major Diseases And Insect Of Vegetable Crops Under Intensive Productions Systems: Kibwezi Experience. Click to View Abstract
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247 | 1998 | Determination Of The Effects Of Nutrient Sources On Enhancement Of Crop Tolerance To Bean Root Rot And Bean Stem Maggot In Western Kenya. Click to View Abstract
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248 | 1997 | Growing Of Climbing Beans(Maharagwe Tambarizi) In Kenya. Click to View Abstract
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249 | 1997 | Management Of Bean Root Rots And Bean Stem Maggot In The African Highlands. AHI Coordinating Office, ICRAF, Click to View Abstract
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250 | 1997 | Relationship Between Bean Stem Maggot, Bean Root Rots And Soil Fertility: Literature Review With Emphasis On Research In Eastern And Central Africa Click to View Abstract
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251 | 1997 | The Effect Of Maize Stem Borers Infestation On Yield Of Maize. Click to View Abstract
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252 | 1996 | Incidence And Severity Of Bean Stem Maggot In Western Kenya. Click to View Abstract
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253 | 1996 | Integrated Pest Management On Beans. Lecture For Integrated Management Of Crop Pests Course Organized For Agriculturalists From Tanzania By Icipe, Click to View Abstract
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254 | 1996 | Selective Use And Application Of Chemical Pesticides In Pest Management. Click to View Abstract
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255 | 1996 | Evaluation Of Some Promising Potato Clones For Tolerance To Potato Leafroll Virus(PLRV) And For Resistance To Its Vectors Myzus Persicae Sulzer And Macrosiphum Euphorbiae Thomas. Af Click to View Abstract
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256 | 1996 | Efficacy Of The Current Insecticidal Control Of Major Pests Of French Beans In Central Kenya Click to View Abstract
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257 | 1995 | Assessment Of Beanfly Incidence, Damage And Losses In Subsistence Farmers'fields In Kenya. Click to View Abstract
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258 | 1995 | Review On Weeds, Pests, Diseases, Nutrition And Nutrient Disorders On Crops In Kenya Click to View Abstract
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259 | 1995 | Crop Protection By Bean Farmers. Kenya Farmer, Click to View Abstract
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260 | 1993 | Survey Of The Pests And Current Control Measures Of Major Pests Of French Beans Click to View Abstract
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261 | 1993 | Evaluation Of Bean Cultivars At Different Stages Of Growth For Resistance To Beanflies. Click to View Abstract
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262 | 1992 | Review Of Agricultural Entomology Research Activities In Kenya Click to View Abstract
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263 | 1992 | A Review On Pests Of Grain Legumes Click to View Abstract
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264 | 1992 | Sweet Potato Insect Pests: Identification And Mode Of Damage Click to View Abstract
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265 | 1991 | Evaluation Of Common Beans Cultivars For Resistance To Beanflies In Single Plantings At Different Seasons Click to View Abstract
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266 | 1991 | Insects Associated With The Potato Crop In Kenya Click to View Abstract
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267 | 1991 | Evaluation Of Common Beans Cultivars For Resistance To Beanflies In Single Plantings At Different Seasons Click to View Abstract
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268 | 1991 | Prevention And Management Of Exotic Insect Pests On Plants In Kenya. African Association Of Insect Scientists (AAIS) Click to View Abstract
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269 | 1990 | Monitoring And Control Of Aphids On Potatoes (Solanum Tuberosum L.). Click to View Abstract
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270 | 1990 | Beanfly Infestation On Common Bean Click to View Abstract
The population patterns of eggs, larvae and puparia on bean plants and leaf punctures made by adults were investigated during cropping (March-July; October-January) and noncropping (July-October) seasons at two sites in Kenya. Bean grown in noncropping seasons had more leaf punctures, eggs, larvae and puparia than bean grown in cropping seasons. Bean sown in noncropping seasons attracted unusually high beanfly populations from surrounding weeds as well as previous crops. Under field conditions, the Onhiomyi beanfly species, sencerella Greathead and 0. phasepli Tryon, bean infested plants in all seasons. Both species normally oviposited in punctures on the leavesbut 0. spencerella also oviposited in the stems of bean seedlings.
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271 | 1990 | Review On Insect Survey And Host Plant Resistance Evaluation Methods On Sweet Potato Production Click to View Abstract
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272 | 1990 | Beanfly Infestation On Common Beans (Phaseolus Vulgaris L.) In Kenya Click to View Abstract
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273 | 1990 | Beanfly Infestation On Common Beans (Phaseolus Vulgaris L.) In Kenya Click to View Abstract
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274 | 1989 | Susceptibility Of Eight Potato Cultivars To Myzus Persicae Sulzer In The Greenhouse Click to View Abstract
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275 | 1989 | Susceptibility Of Eight Potato Cultivars To Myzus Persicae Sulzer In The Greenhouse Click to View Abstract
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276 | 1987 | Potato Virus Vectors And Their Control In Kenya. Cip Integrated Pest Management Course, Nairobi. Click to View Abstract
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