A recent study showed that the top ingredients to repel deer are rotten eggs and capsicum. One deer repellent is called "Deer Solution" and can be found in garden centers.
Many people use bags of human hair placed around the invaded area. The smell allegedly repels the deer by alerting them to the presence of predators (humans). Other humane devices include human urine (frequently renewed) and electronic audio signal broadcasters.
Milorginate works pretty well in the summer when the teperatures warm, spreading moth balls are said to work, rotting eggs, and Bobbex is pretty good also.
