author(s)
Banka Kanda Kishore Reddy, Dr. Ambily Paul, Dr. N Anitha, Dr. Thomas George and Dr. Amritha VS

abstract
Evaluation of efficacy of insecticide mixtures against sucking pests in cowpea viz., pod bug, Riptortes pedestris (Fabricius) and cowpea aphid, Aphis cracciovora (Koch) was conducted at College of Agriculture, Vellayani, Thiruvananthapuram during 2017. The results revealed that chlorantraniliprole 8.8 % + thiamethoxam 17.5 % SC @ 150 g a.i. ha^-1 was found effective in managing the population of pod bug, R. pedestris, followed by thiamethoxam 12.6 % + lambda cyhalothrin 9.5 % ZC @ 150 g a.i. ha^-1 and beta cyfluthrin 8.49 % + imidacloprid 19.81 % SC @ 150 g a.i. ha^-1. Less number of the bug was found in effective treatments against 5.67 bugs/ plant in control after 7 days of spraying. More or less similar result was obtained in the management of cowpea aphid, A. craccivora. Less incidence of aphid was observed in the plants treated with chlorantraniliprole 8.8 % + thiamethoxam 17.5 % SC @ 150 g a.i ha^-1, thiamethoxam 12.6 % + lambda cyhalothrin 9.5 % ZC @ 150 g a.i. ha^-1, chlorantraniliprole 18.5 % SC + thiamethoxam 25 % WG (tank mixed) @ 1:1 and thiamethoxam 25 % WG @ 150 g a.i. ha^-1 against 211.67 aphids plant^-1 in control after 15 days of spraying.