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Item Effect of rice varieties on the extent of leaf consumption by caterpillars of Cnaphalorocis medinalis(Kerala Agricultural University, 1974) Das, N M; Nair, M R G KItem Relative contact toxicity of insecticides to the caterpillars of Cnaphalocroos Medinalis Guenee(Kerala Agricultural University, 1974) Das, N M; Nair, M R G KItem Relative field susceptibility of rice varieties to infestation by the rice leaf roller Cnaphalocrocis medinalis Guenee(Kerala Agricultural University, 1974) Das, N M; Nair, M R G KEighteen varieties of paddy were screened for their relative susceptibility to infestation by Cnaphalocrocismedinalis The cviposition response of the different varieties varied significantly. The varieties could be ranked in the following ascending order with reference to the extent of preference: Kochuvithu, TKM6, TKM1, Adt27, Ptb9, Pankaj, Triveni, 1' 1. Cavery, IR20, Aswathi, Karuna, Jagannath, Annapoorna, Rohini, Mashoori Jaya and iRH- Based on the extent of leaf damage caused by the larvae, Kochuvithu ranked as the least susceptible variety followed by TKM6, TKM1, Ptb9, Adt 27, Pankaj, Triveni, IR20, H4 Cavery, Aswathi, Karuna, Annapoorna and Jagannath there being no significant difference among themselves. IR8, Jaya, Rohini and Mashoori were most susceptible. Based on the extent of leaf damage caused by the larvae Kochuvithu ranked as the least susceptible variety followed by TKM6, TKM1, Ptb9, Adt 27, Pankaj, Triveni. IR20, H4, Cavery, Aswathi, Karuna, Annapoorna and Jagannath, there be ing no significant difference among themselves. Susceptibility of the riee varieties to damage by leaf roller in the field was positively correlated with the number of eggs laid on them.Item Biology of the lace-wing Corythauma ayyari drake a pest of jasmine(Kerala Agricultural University, 1974) Radhakrishnan Nair, C P; Nair, M R G KBiology of Corythauma ayyari (Tingidae : Hemiptera) a lacewing on jasmins is described with mention of the damage caused.Item Use of insecticides for control of pests of brinjal and bhindi(Kerala Agricultural University, 1975) Christudas, S P; Susamma Mathai; Nair, M R G KItem Field evaluation of insecticides against pests of paddy(Kerala Agricultural University, 1975) Susamma Mathai; Christudas, S P; Nair, M R G KItem Relative systemic toxicity of some insecticides to the brown plant hopper when applied as granules in soil(Kerala Agricultural University, 1975) Thomas, M I; Kunjamma, P Mathew; Abraham, C C; Nair, M R G KItem Effect of food, growth and body lipid contents on the susceptibility of tribolium castaneum herbst to toxicity of insecticides(Kerala Agricultural University, 1975) Visalakshy, A; Nair, M R G KThe growth index and weight of Tribolium castaneum were the highest when reared on wheat 4- 5% yeast followed in the descending order by those of insects reared on groundnut oil cake, gingelly oil cake, wheat and coconut oil cake. There was no correlation between the LD 50 values of parathion and endrin on the adults T castaneum on the one hand and the growth index and weight of the insects on (he other. There was positive correlation between the LD 50 values of parathion and the body lipid contents of 7\ castaneum while there was no such correlations in the case of endrin.Item On the persistent toxicity of various insecticides sprays to first instar caterpillars of Cnaphalocrocis Medinalis guenee, the rice leaf-roller(Kerala Agricultural University, 1976) Mohandas, N; Nair, M R G KItem On the toxicity of some newer insecticides to certain common crop pests(Kerala Agricultural University, 1976) Susamma Mathai; Nair, M R G K