Barrier Red Mite Powder for Horses is an effective repellent combinations to be applied directly to birds and poultry as proactive on bird deterrents to infestation or to rectify an existing problem. This kind and gentle powder is designed to be applied directly to all birds. Its slow release formulation will last for up to six weeks depending on the weather.Key Benefits Powder to dust on for a long-lasting effect Proactive on bird deterrent to infestation or to rectify an existing problem Use in intensive rearing, breeding and egg laying units Suitable for use in organic farming systems Contains only pure and natural ingredientsIngredientsAustralian Tea Tree Oil 1.5% and Lavandin Oil 1.5%