<prompt> In malaria control, insecticide used for insectiside treated bed nets ITBN-DeltamethrinMalathionLindoneFenitrothion  <response>: Ans. is a i.e., Deltamethrin Insecticide Treated Bed Nets ITBN Programme esp. deltamethrin has resulted in significant decline in malaria incidence and API Average decline in anopheline mosquito density - 68 Average decline in cuicine mosquito density - 50 Chemicals used in ITBN Programme : Synthetic pyretheroids Deltamethrin : 2.5 in dosage of 25 mgm2 Cyfluthrin: 5 in dosage of 50 mgm2 Other insecticides used : Permethrin, Lambdacyhalothrin, Etofenprox, Cypermethrin Effectiveness of pyrethroids: For 6-12 months Retreatment every 6 months Long-lasting insecticidal mosquito nets LLINs : Also use pyrethroid insecticides, and a chemical binder that allows the nets to be washed 20 times, allowing use for 3 years. 