Provide your cattle the consistent mineral intake and fly control they need to thrive with Purina® Wind and Rain® Storm® All Season 7.5 Complete with Altosid® Insect Growth Regulator (IGR) Beef Cattle Mineral. Containing 7.5% phosphorus, essential macro and micro trace minerals, and supplemental vitamins A, D, and E, this product provides the complete mineral nutrition to address mineral deficiencies inherent in forages-while supporting optimal health, reproduction, and growth. This beef cattle mineral is uniquely formulated with Altosid® IGR to prevent the breeding of adult horn flies in the manure of treated cattle. Protect your mineral investment using our patented Storm® Formula with large particle size ingredients that reduce waste and optimize consumption. Now you can feed your herd while controlling horn flies without weather interruption or water damage. Purina recommends testing your forages and counting your flies to ensure you provide the appropriate mineral and vitamin supplementation to your herd year-round.