When plants disappear overnight, the animal is rarely in sight. The damage is the evidence, and it is usually clear enough to tell deer, rabbits, and voles apart. That matters because the fix for each is different. Before blaming any animal, rule out insects: small ragged holes and chewed leaf edges are more often slugs or caterpillars, which the garden pests guide covers.
The short answer
- Torn, ragged stems and leaves, sometimes high on the plant, mean deer. Clean, angled cuts close to the ground mean rabbits. Gnawed bark at the base of a trunk, often found after snow melts, means voles.
- Deer: only a fence at least 8 feet tall reliably keeps them out of a garden. Repellents help for a while if you rotate them.
- Rabbits: a 2-foot fence of 1-inch mesh, buried or pinned at the bottom, stops them in summer; go 24 to 36 inches tall around shrubs and trees for winter.
- Voles: wrap young trunks in ¼-inch hardware cloth, set into the ground, and keep mulch pulled back from trunks.
- Check every barrier after heavy snow, which lets rabbits reach higher and gives voles cover.
Whose damage is it?
| Animal | What the damage looks like | Where on the plant |
|---|---|---|
| Deer | Torn, ragged, shredded ends on leaves and twigs. Deer have no upper front teeth, so they grip and jerk rather than bite cleanly. | Anywhere up to the height a deer can reach, often well above where a rabbit could feed. |
| Rabbits | Clean cuts at about a 45° angle, as if snipped with shears. In winter, gnawed bark and clipped twigs on shrubs and young trees. | Low, close to the ground or the snow surface. |
| Voles | Bark gnawed away around the base of a trunk, sometimes girdling it all the way round. Narrow runways, 1 to 2 inches wide, through grass or under snow, with small burrow openings. | At or just below the soil surface, and as high as snow lies against the trunk. |
Woodchucks also leave cleanly cut stems. Tracks, droppings, and the time of year help confirm which animal you have.
Deer: fences beat everything else
Deer are the hardest of the three to stop, and the only fully reliable answer is a fence.
- To protect a whole garden, the fence must be at least 8 feet tall, and reach all the way to the ground so deer can't slip underneath.
- Shorter can work in special cases. Deer are reluctant to jump a 6-foot solid privacy fence they cannot see over, or into a small enclosed space, roughly 10 by 10 feet or less, where there is little room to land.
- Cage individual plants. For a few shrubs or young trees, a cylinder of wire fencing around each plant protects them without fencing the whole yard.
Rabbits: a short fence works
Rabbits can't jump high, so a low fence stops them, if they can't squeeze through or under it.
- In the vegetable garden: use fencing with mesh 1 inch or smaller, about 2 feet tall. Bury the bottom an inch or two, or pin it tight to the ground with U-shaped landscape pins.
- Around shrubs and young trees for winter: make the fence 24 to 36 inches tall, so rabbits standing on snow can't reach over it. Bury the bottom 2 or 3 inches, or pin it.
- Tree guards: white plastic spiral or corrugated guards around the trunks of small trees keep rabbits off the bark.
Voles: protect trunks before winter
Voles, sometimes called meadow mice, do most of their damage in winter, when other food is scarce and snow hides them while they feed. The usual injury is a trunk girdled at or near the ground, which can kill a young tree outright.
- Wrap trunks in hardware cloth. Use ¼-inch mesh, 18 to 24 inches tall, set 4 to 6 inches into the ground, and at least 4 inches taller than the deepest snow you expect.
- Keep mulch off the trunk. Voles shelter in mulch and in straw or leaf mulch laid over plants for winter. Keep wood mulch at least 6 inches from the trunks of young trees, and no more than 2 to 3 inches deep. A mulch volcano piled against the bark is an ideal vole shelter; the mulch guide shows how far back to pull it.
Repellents and "deer-resistant" plants
Repellents are sold in many forms, but Extension services are cautious about them. They rarely work as well as hoped, they wear off and need renewing, and animals that are hungry enough ignore them. If you use them, change products regularly so animals don't get used to one scent, and treat them as a help alongside barriers rather than a replacement.
Deer-resistant plants are worth choosing for the edges of a garden, near woodlots and paths where deer enter. But resistant is not proof: a hungry deer will eat almost anything.
Check after snow
Snow changes the rules. A rabbit standing on a snowdrift can reach over a fence or tree guard that worked in November, and voles tunnel under the snow out of sight. After each heavy snowfall, check that guards and fences still stand well above the snow. The November guide puts this protection in the fall routine.
Sources and further reading
- University of Minnesota Extension: How to manage deer damage on trees and other plants — identifying deer browse.
- University of Maryland Extension: Managing deer damage (Bulletin 354).
- Iowa State University Extension: How to protect gardens from deer — fence height, rotating repellents, and resistant plants.
- Colorado State University Extension: Preventing deer damage — the limits of repellents.
- University of Missouri Extension: Preventing and controlling damage caused by cottontail rabbits — clean-cut browse and fencing.
- Iowa State University Extension: How to protect gardens from rabbits — mesh size, fence height, burying or pinning, and tree guards.
- Iowa State University Extension: How to protect trees and shrubs from animal damage over winter — winter fence height and checking after snow.
- Penn State Extension: Voles — girdling, runways, and hardware cloth guards.
- University of Illinois Extension: Vole.
- Utah State University Extension: How to prevent vole damage — mulch distance and depth around young trees.