Responses of different wheat genotypes against aphid (Schizaphis graminum R.) and its natural enemies

Abstract

In the present study,rnincidence of aphid and its natural enemies was observed among different wheatrngenotypes. The genotype Mairaj-81 possessed maximum aphid populationrn(6.83/tiller) and was proved the most susceptible as compared to others. Thernpeak population of the aphid was observed on 18 March, 2014 (20.03/tiller)rnwhile population of aphid was observed minimum on 08 April, 2014 (0.01/tiller).rnCoccinellids and Chrysoperla carnea population was observed maximumrn(0.08/tiller, 0.44/tiller) respectively on MILLAT-11. Maximum population ofrnSyrphid fly was observed on Mairaj 2008 (0.11/sweep).