School of Agriculture and Biotechnology
https://karuspace.karu.ac.ke/handle/20.500.12092/1807
2024-03-29T15:10:31Zpopular dynamics of megalurothrips sjostedti and frankliniela occidentalis (Thysanoptera: thripidae) in a French bean (Phaseolus vulgaris L. agroecosystem
https://karuspace.karu.ac.ke/handle/20.500.12092/3057
popular dynamics of megalurothrips sjostedti and frankliniela occidentalis (Thysanoptera: thripidae) in a French bean (Phaseolus vulgaris L. agroecosystem
Gitonga, L. M.; Lohr, B.
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Research article on megalurothrips sjostedti and frankliniela occidentalis (Thysanoptera: thripidae) in a French bean
2008-01-01T00:00:00ZEvaluation of feed for rearing corcyracephalonica and optimisation of host and parasitoid ages for mass-production of trichogramatid parasitoids
https://karuspace.karu.ac.ke/handle/20.500.12092/3056
Evaluation of feed for rearing corcyracephalonica and optimisation of host and parasitoid ages for mass-production of trichogramatid parasitoids
Migiro, L. N.; Gitonga, L. M.; Sithanantham, S.
Research article on mass-production of trichogramatid parasitoids
2008-01-01T00:00:00ZThe Critical Onion Growth Stages For Selective Protection From Thrips Tabaci Lindeman (Thysanoptera:Thripidae) Infestation
https://karuspace.karu.ac.ke/handle/20.500.12092/3052
The Critical Onion Growth Stages For Selective Protection From Thrips Tabaci Lindeman (Thysanoptera:Thripidae) Infestation
Waiganjo, M. M.; Sithanantham, S.; Mueke, J. M.; Gitonga, L. M.
Field trials were conducted during 2000-2001 at KARIandrsquo;s Mwea-Tebere and Kiboko farms to establish the effect of onion thrips, Thrips tabaci Lindeman on onion bulb yields and to identify the critical onion growth stage for selective protection from the pest infestation. Yield reductions of 59 and 27% were recorded in the first and second crops respectively at Mwea-Tebere, but no significant yield reductions were observed in a third crop grown at Kiboko with low thrips infestation. A significant onion yield response to thrips infestation was observed during the 2nd month after transplanting (bulb-formation) and 3rd month after transplanting (bulb-enlargement), but no significant response was observed during the 1st month (pre-bulbing) and 4th month (maturation stage). Onion protection during bulb-formation and enlargement stages only, resulted in higher marginal returns than full season pesticide application. The studies suggest that control recommendations for onion could be refined to optimize need-based protection.
Conference proceedings
2006-01-01T00:00:00ZPreventive control alternatives to routine foliar spray against Thrips tabaci in onions
https://karuspace.karu.ac.ke/handle/20.500.12092/3050
Preventive control alternatives to routine foliar spray against Thrips tabaci in onions
Waiganjo, M.; Sithanantham, S.; Gitonga, Linus; Mueke, J. M.
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Research article on Preventive control alternatives to routine foliar spray against Thrips tabaci in onions
2008-10-01T00:00:00Z