Effect of diflubenzuron treated wheat seed against khapra beetle, Trogoderma granarium Everts (Coleoptera: Dermestidae)

Abstract

In the present investigation,the effect of different dosages (0,5,10,20,30,40,50 and 60 ppm) of diflubenzuron (Dimilin),a chitin synthesis inhibitor, mixed in wheat seeds was assessed in reducing the weight loss of seeds caused by feeding of the grubs of Trogoderma granarium Everts. Further, its role in reducing the infestation of wheat seed was also recorded. After 3 months of release of larvae it was found that there was less weight loss and less infestation in the treated seed, while it was very high in untreated seed.