For year round control of deer, rabbits, elk, moose, hares, voles, squirrels, chipmunks and other herbivores Protects approximately 1,750 square feet Application frequency: Active growing season (6-8 weeks), Dormant Season (apply at start of dormant season and again before snow fall). 100% Dried Blood (Porcine and/or Bovine). No animals parts are used. OMRI listed (Organic Materials Review Institute) for Organic Production. Made in the USA.