Prozap Dy-Fly Aerosol Insecticide Spray is a pressurized, ready-to-use formula that delivers quick knockdown and kill of common flying and crawling insects. The active ingredients work together, with piperonyl butoxide boosting the insect-killing action of the pyrethrins. It can be applied as a direct animal spray on cattle and other livestock or used as a general premise spray in barns, stables, dairies, milk rooms and poultry houses. The aerosol can requires no mixing or dilution and is triggered with a standard actuator. Application involves holding the can upright, directing the nozzle away from the user, and following label directions for coverage and reapplication frequency. Users should avoid spraying near the face or eyes of animals and should ventilate treated indoor spaces as directed on the label.