CSI 4-4 is a specially formulated low odor, non-corrosive, synergized synthetic pyrethroid with quick knockdown for controlling adult mosquitoes, biting and non-biting midges and black flies in residential, recreational and other areas. This product is easy to mix and can be diluted in oil or applied undiluted. CSI 4-4 can be used in ULV, thermal and barrier applications using ground and aerial equipment.