Abstract
Azadirachta indica, the so-called Neem or Nim, is well-known for its biological activities in many countries. The present study aimed at investigating the antifeedant properties of the hydroalcoholic extract obtained from the leaves of Neem on Zabrotes fasciatus (Coleoptera: Bruchidae), an insect pest that commonly feeds on common bean (Phaseolus vulgaris) during seed storage. We observed that the hydroalcoholic extract obtained from Neem leaves displayed significant antifeedant activity when it was added to the insect diet via Phaseolus vulgaris seeds. Additionally, the inhibitory effects of this extract on Phaseolus vulgaris germination and growth were also evaluated, indicating that both seed germination and radicle growth were affected in a concentration-dependent manner.
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