Publication Type
Journal Article
Journal Name
Insect Science and its Application
Publication Date
1-1-2002
Abstract
The efficacy of neem kernel cake powder water extract (NKCP-WE) and Dipel 2x (Bacillus thuringiensis var. kurstaki) in controlling the diamondback moth (DBM), Plutella xylostella Linn. (Lepidoptera: Yponomeutidae), on cabbage was evaluated in screenhouse experiments. All concentrations of NKCP-WE tested were larvicidal and plants treated with 25 and 50 g/l NKCP-WE retained larvicidal activity for up to 2 weeks after application. The efficacy of 25 and 50 g/l NKCP-WE and 0.5 g/l Dipel 2x was compared by observing DBM development on the treated plants and yields of those plants. Dipel 2x-treated plants had less DBM larval infestation than the neem-treated plants but the latter treatment gave better yield. The implications of these observations are discussed. © 2002 ICIPE.
Keywords
Azadirachta indica, Bacillus thuringiensis, Cabbage, Diamondback moth, Dipel 2x, Kenya, Neem, Plutella xylostella
Recommended Citation
Okoth, S., Ogol, C., Basimike, M., & Varela, M. (2002). Comparative evaluation of the efficacy of aqueous neem extract and Dipel 2x on diamondback moth, Plutella xylostella Linn., on cabbage in Kenya. Insect Science and its Application, 22 (2), 139-143. https://doi.org/10.1017/s1742758400015228