Effectiveness of Various Insecticides against Spotted Bollworms (Earias Spp.) at Shahjahanpur, U.P., India

Abstract

In order to evaluate the performance of cypermethrin, fenpropathrin, bifenthrin and cyhalothirn, against spotted bollworm (SBW) (Earias spp.) at A Research Farm, Shahjahanpur, U.P. and at a farmer’s field for the years 2007 and 2008, studies were carried out in Randomized Complete Block Design with three replications. The data of the spotted bollworms was taken from fruiting bodies of 25 plants selected at random. Bifenthrin and cyhalothrin registered lowest number of spotted bollworm larvae 48 hr after spray and high gain of seed cotton. The efficacy of insecticides is discussed under condition of the area of the study.