EFFICACY OF DIFFERENT INSECTICIDES AGAINST SUCKING PEST COMPLEX OF GUAVA

Among the various insecticides tested against the sucking pests, all the insecticides proved their effectiveness in minimizing the sucking pests incidence when compared to the untreated control.Among them, soapnut powder @ 5g/L spray followed by Beta-cyfluthrin 8.49 % + Imidacloprid 19.81 % OD @ 1 ml/L recorded the least damage incidence for all the sucking pests of guava (tea mosquito bug, spiralling whitefly and mealy bug) showing better performance which is on par with detergent powder spray @ 5 g/L followed by Beta-cyfluthrin 8.49 % + Imidacloprid 19.81 % OD @ 1ml/L.The next most effective treatments were soapnut powder @ 5 g/L spray following Thiamethoxam 12.6 % + Lambda cyhalothrin 9.5 % ZC @ 0.4 ml/L which was at par with detergent powder -Thiamethoxam 12.6 % + Lambda cyhalothrin 9.5 % ZC @ 0.4 ml/L.Highest net returns and yield was obtained from soapnut powder @ 5g/L spray followed by Beta-cyfluthrin 8.49 % + Imidacloprid 19.81 % OD @ 1 ml/L treatment having B:C ratio of 1:4.87, which is in par with detergent powder spray @ 5 g/L followed by Beta-cyfluthrin 8.49 % + Imidacloprid 19.81 % OD @ 1ml/L with the B:C ratio of 1:4.70.