Studies on correlation of gram pod borer, Helicoverpa armigera (Hubner) with abiotic factors by pheromone traps

Abstract

Seasonal incidence of gram pod borer, Helicoverpa armigera (Hubner) on chickpea through pheromone traps was carried out at Sehore, during 2015-16. Maximum number of male moths trapped were 29.92 /trap/week, recorded during 2nd standard week (8th Jan. -14th Jan.), while maximum number of larvae was 2.45/ mrl recorded during 4th standard week (22nd Jan. -28th Jan.). A negative and non-significant weak correlation was observed between adult male moths of H. armigera with maximum temperature; minimum temperature, and relative humidity; however, negative and significant weak correlation was found between larval population with maximum temperature; minimum temperature, and relative humidity. A positive and non- significant weak correlation between adult male moths populationand larval population was observed.