Current scenario of efficacy of some chemical combinations for the control of whitefly (Bamisia tabicai) on different genotypes of cotton crop

White gold is very important fiber crop grown all around the globe. Plenty of insect pests attack on cotton crop including whitefly as most important one. Every year provoking whitefly infestation is inclining as a serious threat to our cotton crop. Farmers are regularly using many chemicals to manage all the stages of this pest. At form level efficacy of different chemicals may varies due to different factors. Therefore, a study was planned to check the current scenario of efficacy of some chemical combinations for the control of whitefly (Bamisia tabicai) on different genotypes of cotton crop. In this regard cotton varieties J5, BS15, FH490, CKC1 and IUB2013 were planted in field at area of 1 acre for each and sprayed three different chemical combinations as Fenpropethrin+ Buprofezin (P1), Omathoate+ Buprofezin (P2) and Dinotifuron+ Pymetrin+ Buprofezin (P3). Results showed that application of P3 performed best as both adult and nymphs were more killed. While P2proved second most effective combination that managed the adults and nymphs as well. P1 combination was least effective as whitefly adults were not controlled. Therefore in severe whitefly infestation pesticide combination as Dinotifuron+Pymetrin+ Buprofezin proved best to check its population below economic threshold level. It can be incorporate as an important chemical tool in integrated pest management program.