Antifeedant activity of solvent extracts of neem seed kernel against Spodoptera litura F. and their persistency against sunlight through encapsulation

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• Present address: Regional Research Station (OUAT), Keonjhar‐758002, Orissa, India.
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• Present address: Department of Entomology, College of Agriculture, O.U.A.T. Bhubaneswar‐751003, Orissa, India.
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