Monitoring of adult moth populations of gram pod borer (Helicoverpa armigera Hubner) in chickpea using pheromone trap

An experiment was conducted during 2015-16 and 2016-17 at Agriculture Research Farm, Banaras Hindu University, Varanasito know the peak populations of male moths of gram pod borer using pheromone traps and for proper management measures in time. During the entire investigation period three peaks were observed. These peaks were during 7th, 11th , 14th standard meteorological week and 8th, 12th, 14th standard meteorological week in 2015-16 and 2016-17, respectively. Maximum and minimum temperature, evening relative humidity,and sun shine hrs had positive correlation with male moth catches. Negative association was observed between morning relative humidity and moth catches during 2015-16whereas in next year temperature sun shine hrs had positive correlations and significant and negative correlation was observed in sunshine and relative humidity, respectively. This investigation may be useful for forecasting of gram pod borer in chickpea.