Abstract: A liquid phase composition of a pyrethroid in concentrations greater than 50% w/w that may be used as a basis for other pyrethroid containing formulations in physical phases other than the liquid phase is described. A method of treatment utilizing the composition on domestic mammal is also described. The composition can be applied as a small dose to a localized region of the animal's body which is then delivered to relatively all of the animal's body surface by migration of the pyrethroid.

Abstract: The present invention comprises an improved animal dust bag for holding and dispensing powdered insecticide. The bag arrangement permits the bag to be hung from two spaced apart points when it is desired to avoid turning of the bag, or from a single overhead point when turning of the bag is of no concern. A flap extends upwardly from the top of the bag and presents an eyelet for receiving the two tie strings. When the two tie strings are threaded through the eyelet there is virtually no possibility of an animal sticking its head or a horn between the tie strings and pulling down the bag or damaging it. The eyelet also assures that the bag will be held relatively even, thus avoiding compaction of the powdered insecticide in one corner. A horizontal hanger bar extends across the top of the bag and presents two eyelets on either side so that when attachment at two spaced apart points is desired, the two eyelets of the hanger bar will avoid strain being placed on the bag material itself.