Synergized Delice for Farm Animal, Color: White , Size: 1 GALLON, Count 6 For use on beef cattle, lactating and non-lactating dairy cattle, calves, sheep, and premises. Excellent for controlling horn and face flies. Controls lice on all cattle. Ready to use. Oil based for application anytime of year. Convenient application methods: pour-on, spray-on or back-rubber. Economical to use.