C.M. OLA, H.L. DESHWAL, J.K. BANA* AND G.C. JAT

Efficacy of seven chemical insecticides and two botanicals were evaluated against coriander aphid. Two sprays of the treatments viz. imidacloprid, thiamethoxam and acetamiprid were found highly effective against the aphid whereas,  dimethoate, dichlorvos, carbosulfan and malathion were moderately effective. However, the botanicals NSKE and azadirachtin were found less effective in reducing the aphid population. The maximum seed yield was observed in imidacloprid treated plots followed by thiamethoxam and acetamiprid, whereas, minimum yield was recorded in azadirachtin treated plots. Benefit cost ratio was highest for thiamethoxam treatment and lowest for azadirachtin.