Assessment of Field Efficacy of Diverse Insecticides to Encounter Thrips (Thrips tabaci Lindeman) Infesting Onion under agro-climatic condition Ghayathi – Abu Dhabi, United Arab Emirates

Abstract

A research study comprising of field trial was conducted to evaluate the field efficacy of nine various insecticides against the insect of onion thrips in terms of survival of the population of thrips per plant. These insecticides include (Lambda-cyhalothrin 10% @ 0.25 ml/l, acetamiprid 20SP @0.25 g/l, Imidacloprid 70 WG @ 0.25 g/l, Dinotefuran 20 SG @ 0.25 g/l, Thiamethoxam 25 WG @ 0.25 g/lit, Deltamethrin 2.5 EC @ 2 ml/lit, Chloropyrifos 50%, Buprofezin 25 SC @ 2 ml/lit, and Acephate 75 SP @ 1 g/lit) with untreated control. During the trial acetamiprid followed by Chloropyrifos proved their worth by achieving the low survival rate. The spray of acetamiprid 20SP @0.25 g/l achieved the highest yield (24.37 tons/ha) of onion against 11.96 tons/ha in the untreated phase and Chloropyrifos 50% @ 2 ml/lit was also very effective by producing 23.66 tons/ha of onion.