Aerial Application of Insecticides To Control Flies At Feedlots, 1970-76

ULV and LV aerial applications by fixedwing and rotary blade aircraft were evaluated for control of stable and house flies at feedlots in Nebraska. Fly counts were taken ca 24 hr pre and posttreatment. Stable fly numbers were determined by counting the flies on the inside of 1 front leg and the outside of the other on a minimum of 50 cattle per lot. The resultant number was termed "flies per leg". House flies were counted by the Scudder Grid method (average high 5 of 10 counts of flies landing on grid in 30 sec). Flights were made at temperatures above 80° F and when wind velocity was below 10 MPH. Helicopter flights were made at altitudes of 35 ft and at 45 MPH. Fixed-wing flights were made at altitudes of 25 ft and at 80 MPH.