The most effective repellent I've found turns out to be the simplest. Take a raw scrambled egg, and mix it in to a 1 gallon container about 2/3 full of water. Place a cap on the bottle, and shake it up daily. Surprisingly, this mixture doesn't make gas, so it's not necessary to vent it.

After a week, this mixture can be sprinkled around areas that you want to protect, or thin strips of paper towel can be dipped in it and hung on the branches of bushes or trees. This needs to be repeated every 2-3 days, or after it rains, of course! The scent is tolerable, but for wildlife, it's overwhelming. No more nuts in my planters courtesy of FTR's (F'ng tree rats). A friend of mine is finally getting to enjoy his raspberries using this, placing it in small dishes (or old jar lids) every few feet around the beds. A little dab'll do ya! It works. Let me know how this works for you!
Good luck,

Rick in CT