Karnal: The farmers suffering huge losses due to damage to sugarcane crop beause of the dreaded “white grub” disease can heave a sigh of relief as the scientists at the Sugarcane Breeding Centre, Karnal, have discovered a pesticide for effective control of the disease. The disease was rampant in several districts of UP, parts of Haryana and Punjab and, at many places, the farmers had been forced to root out the crop to get rid of the disease.