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Permanent URI for this collectionhttp://localhost:4000/handle/123456789/1975
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Item Chemical control of the rice leaf roller Cnaphalocrocis Medinalis Guen(Kerala Agricultural University, 1977) Thomas, B; Karunakaran, KA field trial was conducted in the Rice Research Station, Pattambi for four consecutive seasons in 1974-75 and 1975-76 with a view to study the relative efficiency of ten insecticides against the Rice Leaf roller Cnaphalocrocis medinahs. Leptophos, monocrotophos, ethyl parathion, quinalphos and dicrotophos applied at 0.25 kg a.i/ha and carbaryl applied at 0.5 kg a.i/ha were highly effective in checking the pest incidence.Item Occurrence of ‘tungro' virus disease of rice in Kerala(Kerala Agricultural University, 1973) Gopalakrishnan, R; Thomas, B; Shanmugham, S NItem Effect of planting seasons and the associated weather conditions on the incidence of the rice stem borer Tryporyza incertulas (Walker)(Kerala Agricultural University, 1972) Abraham, C C; Thomas, B; Karunakaran, K; Gopalakrishnan, RItem Relative efficiency of some plant products in controlling infestation by the Angoumois grain moth Sitotroga cerealella Olivier (Gelechiidae: Lepidoptera) infesting stored paddy in Kerala(Kerala Agricultural University, 1972) Abraham, C C; Thomas, B; Karunakaran, K; Gopalakrishnan, R