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Relative efficacy of different insecticides for the control of cotton bollworms



Relative efficacy of different insecticides for the control of cotton bollworms



Journal of Insect Science 6(1): 152-153



Studies on the efficacy of synthetic pyrethroids vis-a-vis endosulfan at varied dosages revealed that fenvalerate, cypermethrin and deltamethrin @ 75, 50 and 15 g a.i./ha respectively proved better than endosulfan @ 700 and 1400 g a.i./ha in controlling the bollworms and increasing the seed-cotton yield. Different dosages of insecticides did not differ significantly in decreasing the bollworm incidence and increasing the seed-cotton yield.

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