Biology of pulse beetle, Callosobruchus chinensis (L.) on stored black gram, Vigna mungo (L.)

Abstract

The biology of pulse beetle, Callosobruchus chinensis (L.) on black gram, Vigna mungo (L.)” was studied during July – December, 2019 under laboratory conditions at the Department of Entomology, Rajasthan College of Agriculture, MPUAT, Udaipur. The study revealed that the mean hatching period of pulse beetle eggs was 4.10 days. The mean larval and pupal period was 26.57 days. The mean pre-oviposition, oviposition and post-oviposition period of female pulse beetle were 5.83, 4.77 and 1.77 days, respectively. The mean male and female longevity were 8.43 and 12.37 days, respectively. Total life cycle of male and female pulse beetle were completed in 39.03 and 42.97 days, respectively. The mean fecundity of female was 89.30 eggs and ranged from 81 to 97 eggs.