Use Permectrin CDS as a pour-on, wipe-on, or ready-to-use-spray on horses and cattle to control lice, horn flies, and face flies. Also aids in control of stable, horse, house, and black flies and mosquitoes. Synergized formula; contains 7.4% permethrin; concentrated dose. Use on cattle of any age, breed, or sex. Requires no milk withholding or pre-slaughter withdrawal. Permectrin CDS is convenient and ready-to-use! NOT for sale in CT. DE. ME or MA. Available in a pint, half gallon size, or 2.5 gallon can be special ordered.