Field efficacy of some insecticides, neem oil and spinosad against shoot and fruit borer, Leucinodes orbonalis (Guen.) on brinjal

Abstract

A field experiment was conducted during Kharif season of 2018 at the central research farm of Sam Higginbottom University of Agriculture Technology and Sciences, Prayagraj. The percent infestation of brinjal shoot and fruit borer on third, seventh and fourteenth days after spraying revealed that all the treatements were superior over control. Among alkl the treatments, the treatment with recommended insecticide Spinosad 45 SC was the most effective treatment followed by Chloropyriphos 50EC + Cypermethrin 5EC and Emamectin benzoate 5SG. The next best treatments were found to be Cypermethrin 25EC, Chloropyriphos 20EC and Flubendamide 20WG. Neem oil was least effective against Leucinodes orbonalis (Guen.). The highest Benefit cost ratio was recorded in Spinosad (1:6.70) followed by Chloropyrifos 50EC + Cypermethrin 5EC (1:6.21), Emamectin benzoate (1:5.40), Cypermethrin (1:5.02), Chloropyrifos (1:4.38), Flubendamide (1:3.88) and Neem oil (1:3.22).