Saeed, ShafqatNaqqash, Muhammad NadirJaleel, Waqar2024-11-072024-11-0720160030-9923https://hdl.handle.net/11480/11071Cotton (Gossypium hirsutum L.) is life blood for the economy of Pakistan. Pakistan is the fourth largest cotton producer in the world. Yield of cotton in Pakistan is lesser as compared to international standard, due to attack of insect pests and diseases. Due to large scale adoption of Bt cotton, bollworms are not a major problem however attack of sucking pests have increased. Among the sucking pests, red cotton bug (Dysdercus koenigii Fabr) is an emerging pest, so there is urgent need of devising its control strategies so since from last 10 years its big stainer problem in Pakistan. Chemical control is adapted by approximately all farmers for about all types of pests in Pakistan. Seed dip method was used for the evaluation of toxicity of lufenuron (050 EC), chlorfenpyr (360 SC), deltamethrin (10 EC) and chlorpyrifos (40 EC) against 4th and 5th instar of D. koenigii after rearing in the laboratory. Susceptibility decreases in later instars i.e. with increase in vigor. Order of toxicity was chlorpyrifos>deltamethrin>lufenuron>chlorfenpyr. As the chlorpyrifos is a broad spectrum insecticide and is effective against a variety of insect-pests so it gave the best results in laboratory. Integrated pest management strategies include all the available control methods in a compatible manner to control a particular pest so only chemical control should not be focused and IPM strategies should be devised for the control of D. koenigii. © Copyright 2016 Zoological Society of Pakistan.eninfo:eu-repo/semantics/closedAccessChlorfenpyrChlorpyrifosDeltamethrinDysdercus koenigii F.Gossypium hirsutumLufenuronArticle485124912542-s2.0-84991573442Q4