A chemical delivery system for controlling virus-carrying beetles in a poultry house includes a water line in communication with a water source and chemical injector. The system includes an outer shell and bracket configured to mount the water line to a poultry house wall, the water line having a plurality of spaced apart holes such that, when the water and chemical are actuated, delivers a continuous stream of chemical onto the wall and litter bed so as to neutralize the beetles from spreading virus to poultry.
