How to make homemade deer repellent (recipe)

[FakeNoose]

2. I can't say for sure but it seems that it would

The way this works is the garlic, onion and pepper attaches to their nose when they sniff the leaves and bark. That becomes a painful deterrent, and they leave and don't come back.

However rabbits are lower to the ground and eat smaller things, not tree bark or shrub leaves for sure.
I'd say give this a try and see if it works. You're only going to be out about $4 or $5 worth of ingredients.