Abstract
Comparative efficacyof six combination insecticides viz.,Azocard, Pay-off plus, Laser, Mavrik-B, Deltaphos-R and Nurelle-D were tested at Toba Tek Singh during 1987.Azocard 44 EC reduced the jassid population to 79.0 and 75.7% after 48 and 96 hours of spray, respectively. All the insecticides were equal in performance in controlling white fly and thrips after 48 and 96 hours of application. Spotted bollworms infestation was the lowest in plots treated with Deltaphos- R. Yield of seed cotton was the highest from Laser 25 EC treated plots. At Faisalabad, cotton was the highest from Laser 25 EC treated plots. At Faisalabad, during 1988,six combination insecticides, similar to that at Toba Tek Singh. During 1987, except NurelleD was replaced by with Decis-D, were at par in controlling whitefly 48 and 96 hours after spray but significantly different in controlling jassid, thrips and bollworms. The highest yield of seed cotton was obtained with Deltaphos-R.
