Natural enemies of Bt cotton
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A field trial was conducted to evaluate the bioefficacy of combinations of spinetoram 12 SC with fungicides / fertilizer / growth regulator, as foliar application on 90 days old Bt cotton against sucking pests and foliar diseases.
7p quenchua8 29-09-2020 18 1 Download
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In this background, experiments were designed to know the compatibility of a newer insecticide, diafenthiuron 50 WP with other agrochemicals against sucking pests, foliar diseases and natural enemies on Bt cotton.
9p cothumenhmong7 09-09-2020 12 2 Download
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Survival and fertility characteristics of the third instar larvae of Spodoptera litura (Fabricius), on Bt-I and Bt-II cotton hybrids during 120-150 DAS were assessed in the laboratory. Life tables and population parameters of the S.litura were constructed in an environment with unlimited food supply and that was free of natural enemies. The results revealed that the modest rate of mortality occurred in the immature stage, especially in the third instar. The population parameters calculated are recorded as low in Bt-II hybrids compared to Bt-I hybrids.
20p chauchaungayxua5 08-05-2020 12 0 Download
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In order to study the effects of repeated use of various insecticides on thrips and their natural enemies viz., Ladybird beetle and Predatory spiders, an experiment was conducted during Kharif, 2018-19at the Experimental farm, Department of Agricultural Entomology, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani. The insecticides selected included those used commonly among the farmers viz., Imidacloprid 17.
13p cothumenhmong3 22-02-2020 17 0 Download