use to deter deer from flower beds and trees is a liquid deer repellent. we have found this product to be very effective but quite smelly. it has the odor of rotten eggs and needs to be applied every five to six days. we also use a fake coyote to deter the deer. we put out the fake coyote before we leave in the afternoon. when the deer see the coyote, they stay clear of the location, but the coyote has to be moved constantly to prevent the deer from becoming accustomed to it. the best way to keep the deer from eating our plants is to try and plant 