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ThesisItem Open Access Biology, Bionomics and control of coconut cockchafer Leucopholis coneophora Burm.(Division of Agricultural Entomology, College of Agriculture, Vellayani, 1983) Abraham, V A; KAU; Mohan Das, MThe biology of the coconut cockchafer Leucopholic coneophora Burm. was studied in detail for the first time. Techniques for rearing the pests from egg to adult in potted palnts kept in field were standardized. The egg laying behaviour of adults was observed. The morphological changes off eggs, different instars of grubs and pupae during development were studied in detail. The changes in immature stages of male and female insects were traced separately. The general morphology of different instars of the grubs was studied in full with a view to finding distinct identifying characters for each.ThesisItem Open Access Biology ecology and host plant relations of the brown planthopper, Nilavaravata lugens Stal(Division of Agricultural Entomology, College of Agriculture , Vellayani, 1977) Thomas, M J; KAU; Gopalakrishnan, Nair M RThesisItem Open Access Use of insecticides as granules for protecting paddy crop against pests(Division of Agricultural Entomology, College of Agriculture, Vellayani, 1981) Sasidharan, Pillai K; KAU; Gopalakrishnan, Nair N R