Population dynamics of lepidopteran pests on Egyptian clover and bioefficacy of reduced risk insecticides for their management

Abstract

Population dynamics of Helicoverpa armigera (Hubner) and Trichoplusia orichalcea infesting Egyptian clover showed peak population of H. armigera on April 30 in var. BL-10 and T. orichalcea on April 9 in var. BL-42. The bioefficacy of reduced risk insecticides viz., chlorantraniliprole 18.5 SL @ 125 ml/ha and flubendiamide 480 SC @ 100 ml/ha significantly reduced T. orichalcea and H. armigera at 2nd and 7th days of spray and recorded higher seed yield.