Pam's deer repellent works as well as the stuff sold at stores. I live in a MAJOR deer infested area. I apply this repellent on my fruit trees and roses in the cooler times of late afternoon once a month. I get a warning it's getting neer the time to spray because one or two leaves have been bitten off.
There is an added bonus to this deer repellent; it's a bug deterrent as well! I am in heaven!