Bio-Efficacy of selected chemicals, bio-agents and botanical against the jasmine budworm, Hendecasis duplifascialis Hampson (Lepidoptera: Crambidae)

Abstract

The efficacy of different insecticides, botanical and bio-agents against jasmine bud worm, Hendecasis duplifascialis Hampson revealed that flubendiamide 39.35%SC @ 0.3m1/1, profenophos 50%EC @ 1.5m1/1 and cypermethrin 5%EC @ 0.4m1/1 emerged as most promising treatments in managing bud worm from three trials during July to September, 2018. Thiacloprid 21.7% SC @ 1.5 ml/lt and thiodicarb 75 WP @ lg/lhad moderate effect in bringing down bud worm infestation. Among bio-agents, Beauveria bassiana 1 x 108 spores/ml @ 1m1/1 proved better than Bacillus thuringenesis 17,600IU/mg@lm1/1 and also chemical insecticide treatments viz., thiacloprid and thiodicarb in controlling bud worm and relatively safe to farmers and workers who were involved in buds harvesting on a daily basis. Azadirachtin 0.5% @3m1/1t did not give satisfactory reduction in bud worm damage.