EFFECTS OF SOME NEW ORGANOCARBAMATE & ORGANOPHOSPHATE INSECTICIDES IN CONTROLLING WHITE GRUBS AND THEIR EFFECTS ON THE YIELD OF SUGARCANE IN BANGLADESH

Abstract

An experiment was conducted with some organocarbamate insecticides namely Myfuran 3G, Nikidan 3G, Carbotaf 5G, Rexifuran 5G, Wenfuran 5G, Agrodan 5G, Unifuran 5G, Sinodan 5G, Sinogold 6G, Wenchloro 15G, Furadan 5G to evaluate their effectiveness against white grubs and their effects on the yield of sugarcane. The experiment was carried out at Mohan farm under Thakurgaon Sugar Mills Ltd., Thakurgaon during the cropping season 2005-2006. Wenchlor 15G applied @ 2.25 kg ai ha-1 and rest insecticides applied @ 2.00 kg ai ha-1 in March and April significantly reduced the population of white grubs compared to check plots. Increased cane yield over control was recorded among the treatments ranging from 16.23 to 40.06 %.