Comparative Study of Different Insecticide Efficiencies against the Population of Winter Wheat Aphids (Sitobian avenae)

Abstract

Wheat is one of the most important crop in India, it is 2nd most grown crop after the maize across all over the world. From last few decades the one of most common serious pest named Sitobian avenae of hemiptera genus detriorate the grains of winter wheat. It is the regular pest of winter wheat, which can cause up to the 40 percent of crop yield loss. The effectiveness of six pesticides as foliar applications against Sitobian avenae population was assessed at their recommended doses. The insecticides used, thiamethoxam 25% WG, imidacloprid 17.8 SL, monocrotophos 36 SL, quinalphos, lambda-cyhalothrin and the mixture solution of two insecticides thiamethoxam 12.6 % and the lambda cyhalothrin 9.5% ZC with their recommended field doses. However, one plot was also observed where no chemical treatment was given. Application of thiamethoxam 25 WG resulted significant control over the aphid’s population whereas the quinalphos was observed as less effective against the population of Sitobiaon avenae. It can be resulted that the thiamethoxam among all the chemical control applications could be highly effective or efficiently insecticide for restricting the growth of winter wheat aphids in field.