Ultra Boss Pour-On Insecticide
Ultra Boss® is a pour-on insecticide for use on lactating and non-lactating dairy cattle, beef cattle, calves, sheep, lactating and non-lactating goats, and horses. Controls horn flies, face flies, horse flies, stable flies, black flies, mosquitoes, lice and ticks. Use on sheep to control lice and keds. No pre-slaughter withdrawal and no milk discard. Contains permethrin and piperonyl butoxide. Supplied as a 1 quart or 1 gallon bottle. One quart will treat 57 head of 550 lb cattle; one gallon will treat 229 head 550 lb cattle.