Evaluation of newer chemical insecticides against cotton thrips and leafhoppers through stem application method

Abstract

The present investigation was conducted at Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola During 2014-15 to response of newer insecticides on thrips and leafhoppers of cotton through stem application method. The experimental material consist of insecticids viz. imidacloprid 48 FS, acephate 50 + imidacloprid 1-8 SP, 1:10 and 1:20 applied at 20 and 40 days after emergence with the help of stem smearing bottle and imidacloprid 70 WS used as seed treatments @10g/kg, Amongst the treatment tested, Maximum reduction of population of leafhoppers and thrips was noticed in treatments of acephate 50 + imidacloprid 1.8 SP @ 1:5While, the treatments with, acephate 50 + imidacloprid 1.8 @ 1:10 and imidacloprid 48 FS @ 1:5 were found next effective in the managements of leafhoppers and thrips.