Seasonal abundance of onion thrips, Thrips tabaci Lindeman and their natural enemies under dry land conditions.

Seasonal incidence studies indicated the prevalence of high population of thrips in the kharif season especially during August to October. Roving survey indicated that, maximum mean population of thrips was recorded in Muddebihal taluka while, it was minimum in Bijapur taluka. Generally, the population of thrips occurrence on onion crop was very low during seedling stage and it was gradually increased during vegetative stage of the crop and reached a peak occurrence during physiological maturity stage. Maximum population of spiders and coccinellid beetles were recorded in Basavana bagewadiand Bijapur talukas, respectively whereas, minimum number of spiders and coccinellid beetles were recorded in Muddebihal and Sindagi talukas, respectively.