Efficacy of Conventional Insecticides Against Maize Stem Borer (Chilo Partellus) and Shoot Fly (Atherigona Soccata)

Maize stem borer, Chilo partellus Swinhoe and shoot fly, Atherigona soccata Rondani are considered as major pests of maize (Zea mays, L.). Carbofuran (Carbamate), Endosulfan (Organochlorine), Phorate (Organophosphate), Permethrin (Pyrethroid) and two neonicotinoid insecticides; Imidacloprid and Thiamethoxam were selected to compare their efficacy against Chilo partellus and Atherigona soccata on maize crop under natural infestation during spring, winter and autumn seasons. All insecticides reduced Atherigona soccata and Chilo partellus infestation significantly (p<0.05). Imidacloprid and thiamethoxam were found statistically at par against Atherigona soccata and better than endosulfan. Permethrin and carbofuran were found statistically at par in first week and better than phorate while in second week permethrin and carbofuran were statistically at par but phorate was found better than them.