Effect of Bacillus thuringiensis var. kurstaki and Neem on Castor Defoliators-Achaea janata (Linnaeus) and Spodoptera litura (Fabricius)


Bacillus thuringiensis var. kurstaki was as effective as monocrotophos (0.05%) in causing feeding cessation and mortality of Achaea janata (Linnaeus) on castor. However, it was ineffective against Spodoptera litura (Fabricius) larvae. Neem seed kernel extract (2%) resulted in ovipositional deterrence to S. litura.


Achaea janata, Bacillus thuringiensis, Castor, Neem, Spodoptera litura.

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