Evaluation of selected botanical extracts against cabbage aphids (Brevicoryne brassicae L.)

Abstract

The field experiment was conducted at the Central Research Field, SHUATS, Prayagraj, U.P. during rabi season of 2018-2019. Among all the treatments studied, the results during 1st spray revealed that Spinosad has recorded highest reduction of the aphid mean population (63.38%) followed by Fipronil (54.52%), Neem seed kernel extract (49.06%), Neem oil (48.60%), Citranella oil (46.58%), Tobacco leaf extract (42.06%), and Pongum seed kernel extract (41.40%) was the least effective among all the treatments. The data on the population reduction of cabbage aphids in the 2nd Spray revealed that among all the treatments studied Spinosad has recorded highest reduction of aphid mean population (82.53%) followed by Fipronil (79.33%), Neem seed kernel extract (74.08%), Neem oil (71.80%), Citranella oil (71.22%), Pongum seed kernel extract (69.12%) and Tobacco leaf extract (68.77%) was the least effective among all the treatments studied.