Tropical Agricultural Research
Permanent URI for this collectionhttps://dl.nsf.gov.lk/handle/1/11652
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Item Potential enhancement of nuclear polyhedrosis virus by azadirachtin and its effects on the food utilization,development and mortality of Helicoverpa armigera Hubner(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1998) Kumar, N.S.; Murugan, K.Item Insecticidal activity of leaf extracts of neem (Azadirachta indica A. Juss.)(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1998) Wickramananda, I.R.; Mordue, A.J.; Allan, E.J.