Abstract
Field experiments were conducted during the rabi season of 2012 and 2013 in experimental plots of Bidhan Chandra Krishi Viswavidyalaya, West Bengal to evaluate the efficacy of ready mixed insecticide Novaluron 5.25% + Emamectin 0.9% SC @ 750, 825 and 875 ml ha -1 against Plutella xylostella in cabbage. Efficacy of different treatment schedules of novaluron 5.25% + emamectin 0.9% SC against DBM showed that all the treated plots with chemicals were significantly superior in their performance over that of control plots during both the year. Novaluron 5.25% + emamectin 0.9% SC @ 825 and 875 ml ha -1 gave superlative control of diamond back moth larvae up to harvesting period than the other insecticidal treatments. Novaluron 5.25% + emamectin 0.9% SC @ 875 ml ha-1 gave 100 per cent control from 5 th day after second spray during both experimental year. The maximum yield was obtained from the plots treated with novaluron 5.25% + emamectin 0.9% SC @ 875 ml ha -1 closely followed by @ 825 ml ha -1 .
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