Bio-efficacy of insecticides against fruit flies infesting cucumber

The field experiment was carried to evaluate of bio-efficacy of insecticides against fruit flies infesting cucumber during kharif season of 2017 at Central Experimental Station, Wakawali, Dist- Ratnagiri. The results on efficacy of insecticides against fruit flies infesting cucumber indicated that spinosad 45 SC @ 0.014 per cent was the best treatment which recorded minimum (15.38%) mean fruit infestation and was at par with emamectin benzoate 5 SG @ 0.002 per cent (20.49%). The next best treatments were azadirachtin (1%) @ 0.003 per cent (27.99%) and malathion 50 EC @ 0.05 per cent (32.89%) which were at par with each other. Similarly, malathion 50 EC @ 0.05 per cent (32.89%) which was at par with deltamethrin 2.8 EC @ 0.0024 per cent and dichlorvos 76 EC @ 0.05 per cent recorded 37.32 and 38.99 per cent fruit infestation, respectively. All the above treatments were found to be superior over untreated control which recorded highest fruit infestation (70.54%).