Experiments utilizing organic insecticides on cable-rubber devices for the control of face fly, Musca autumnalis DeGeer, were conducted in 1959 and 1960. Populations were adequately reduced by methoxychlor, toxaphene, DDT and ronnel. Five per cent Crag Fly Repellent® (butoxy polypropylene glycol), DDVP and dimethoate were ineffective in reducing populations.