Field evaluation of thiamethoxam for control of cotton jassid Amrasca biguttula biguttula (Ishida) on upland cotton

摘要

Thiamethoxam (Actara 25 WG), a new molecule of nitroguanidine group, Was evaluated at 25.0, 37.5, 50.00 and 62.5 g a.i./ha along with imidacloprid (Confidor 200 SL) @ 20 g and oxydemeton methyl (Metasystox 25 EC) @ 188 g a.i./ha for the control of cotton jassid infesting upland cotton, Gossypium hirsutum during 1998 and 1999 crop season in five multilocation trials. Thiamethoxam @ 25 g a.i./ha was significantly better than oxydemeton methyl and was at par with imidacloprid for the control of cottonjassid.