Bio-efficacy of various insecticides against maize stem borer Chilo partellus (Swinhoe) Crambidae: Lepidoptera in Junagadh conditions

Abstract

A Field experiment was carried out to study the relative efficacy of nine different insecticides against maize stem borer Chilo partellus at instructional farm J.A.U., Junagadh during the Kharif 2017 and the results revealed that Carbofuran 3G @ 0.3 kg a.i.ha-1, Spinosad 45SC @ 0.002 % and Chlorantraniliprole 18.5 SC @ 0.006% were found highly effective in reducing the larval population and dead heart and found on par to each other. The next best treatments were Indoxacarb 15.8 [email protected]%, Flubendiamide 480 [email protected]%, and Cartap hydrochloride [email protected] kg a.i. /ha. Rest of the treatments was superior over control in reducing stem borer incidence.