Efficacy of selected chemicals for the management of melon fruit fly, Zeugodacus cucurbitae (Coquillett) (Diptera: Tephritidae) on tomato

Abstract

Tomato is an important vegetable crop widely cultivated in India. Recent years, melon fruit fly, Zeugodacus cucurbitae is becoming a serious threat to tomato crop resulting severe yield and economic loss to growers but unfortunately its incidence and damage is not reported in Karnataka earlier. Efficacy of selected chemicals against tomato fruit fly revealed that deltamethrin 2.8% EC @ 1ml/l and spinosad 45% SC @ 0.2ml/l were found superior in controlling fruit fly infestation followed by cypermethrin 25% EC @ 0.5ml/l. Flubendiamide 39.35% SC @ 0.3ml/l, lambda-cyhalothrin 5% EC @ 0.5ml/l and dimethoate 30% EC @ 1.75ml/l were only moderately effective in reducing fruit fly infestation. Quinalphos 25% EC @ 2ml/l was the least effective insecticide among the different chemicals
evaluated.