Percentage mortality of green peach aphid, Myzus persicae by conidial application of three different concentrations (1×106, 1×107 and 1×108 conidia/ml) at different time intervals (2nd, 4th, 6th and 8th day) by Lecanicillium lecanii isolates (V-2, V-3 and V-5). One control was set for all the three isolates. Error bars indicate ± SE and columns headed by different letters represent significant difference (P < 0.05) according to LSD test.