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Permanent URI for this communityhttps://dl.nsf.gov.lk/handle/1/41
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Item Control failure of Sri Lankan whitefly (Bemisia tabaci Genn.) is due to high resistance development against recommended insecticides.(NSF:Colombo, 2017-3) Marasinghe, J.P.; Hemachandra, K.S.; Nugaliyadde, L.; Karunaratne, S.H.P.P.Item Repellency and toxicity of four essential oils to Sitophilus oryzae L. (Coleoptera:Curculionidae)(National Science Foundation:Colombo, 2004) Paranagama, P.A.; Abeysekera, K.H.T.; Nugaliyadde, L.; Abeywickrama, K.P.