author(s)
Anil Kumar, MK Tripathi, Umesh Chandra and Ram Veer

abstract
Helicoverpa armigera is a polyphagous insect pest commonly known as gram pod borer. Present experiments was conducted at the Agriculture Farm, Department of Entomology, Tilak Dhari Post Graduate College, Jaunpur during Rabi 2010-11 and 2011-12. The observation were recorded both year randomly selected plants at weekly interval from vegetative to maturity stage. The highest mean larval populations 5.60 per square meter in the first year were observed during the 48^th standard week and in the second year it is 6.2 per square meter were observed during the 11^th standard weeks. However, lowest mean larval population 0.40 per square meter in the first year were observed during the 14^th standard week and in second year it is 0.90 per square meter were observed during the 1^st standard week.