MARTIN'S Fly Ban Synergized Pour On (2.5 Gallon) Controls lice and flies on beef cattle, lactating and non-lactating dairy cattle and calves when applied as a pour-on, Controls lice and flies on beef cattle, lactating and non-lactating dairy cattle and calves when applied as a mist spray. Controls lice and flies on beef cattle, lactating and non-lactating dairy cattle and calves when applied as a back rubber. Controls keds on sheep and lambs when applied as a pour-on. Controls flies on horses when applied as a wipe-on, pour-on or ready-to-use spray.