Dose response of mycoinsecticides against Thrips tabaci Lindeman on garlic

A laboratory experiment was conducted to determine the effective dose of two mycoinsecticides against Thrips tabaci Lindeman infesting garlic during 2008-09. The results revealed that V. lecanii @ 7 g/l recorded the highest mortality, followed by B. bassiana @ 8 g/l, V. lecanii @ 6 g/l, B. bassiana @ 7 g/l and V. lecanii @ 5 g/l. The results also indicated that the mortality of thrips was comparatively higher in the treatment of V. lecanii as compared to B. bassiana. The mortality increased with the increase in the dose of both the mycoinsecticides.