1All India Network Programme on Pesticide Residues, Hyderabad - 500 030, Andhra Pradesh, India. E mail: deepaksihimoge@gmail.com
Department of Entomology, College of Agriculture, Acharya NG Ranga Agricultural University, Hyderabad - 500 030, Andhra Pradesh, India
*Part of the thesis submitted by the first author to Acharya NG Ranga Agricultural University, Rajendranagar, Hyderabad in part fulfillment for the requirements for the degree of M Sc (Ag).