Blood type ingredients repel by odor and taste. They are a good deer repellent for winter and spring months and tend to adhere to plants longer than other active ingredients. Blood Meal Deer Repellents can come in the form of powders or liquids. We have found blood meal based products to be as effective as egg based and better in winter months than many other active ingredients. The most popular Blood Meal Based deer repellent product is called Plantskydd.
