Our first move is always to follow the worn dirt path back — it almost always ends at a small, round burrow entrance tucked against a fence line, a rock pile, or a foundation edge — that ground-level den, not a treeline, is what separates a ground squirrel or chipmunk from its arboreal cousin. Damage happens in daylight, stems come away gnawed rather than cleanly cut, and seedlings near the burrow entrance are the most frequent casualty. Because they forage outward from that fixed den, the burrow itself is the single most useful clue you have. Hardware cloth buried six to twelve inches around raised beds stops the classic under-fence tunnel, and where they also climb into fruit trees, a smooth trunk collar denies that route too. A hawk or owl decoy startles them for roughly a week before they figure out it is inert. Predator-scent granules fade at a similar pace once no actual predator ever shows up. If a ground squirrel is raiding the bird feeder and leaving the vegetable bed alone entirely, that is honestly a fine outcome — save the caging for the bed that is actually getting hit.
Signs it's them
- The cut: Gnawed stubs.
- Soil disturbance: Small round holes.
The distinguishing check: Look for a small, round burrow entrance at the base of a fence line, rock pile, or foundation with a worn path to the damage — ground squirrels and chipmunks work from a burrow outward at ground level, unlike a tree squirrel dropping in from the canopy.
What actually works
Exclusion beats deterrence — every time, for every culprit on this list. Start here:
Cage vulnerable beds and wrap trunks
½-inch hardware cloth buried 6–12 in around raised beds (they dig under low fences) plus smooth sheet-metal trunk collars 18 in tall for fruit trees they climb
Deterrents — honest expectations
Deterrents are a bridge while exclusion goes in, not a fix. Every one of them fades as the animal learns nothing bad actually happens.
Predator decoy (owl or hawk silhouette)
Place near the bed or tree, move it every few days.
Squirrels are smart and quickly learn a decoy never moves on its own — short useful life.
Expect about 7 days before they adjust.
Motion-activated sprinkler
Cover the burrow entrance or the trunk approach.
Holds up better than visual scares alone, but they will find an unguarded angle eventually.
Expect about 21 days before they adjust.
Predator urine granules (coyote/fox)
Apply around the burrow site or bed perimeter.
Habituates within about ten days once no predator ever actually shows up.
Expect about 10 days before they adjust.
Never do this
- Rodenticides — secondary poisoning kills the hawks and owls that hunt them, plus pets
- Glue traps
- Ultrasonic repellers — no reliable evidence against squirrels
A squirrel raiding the bird feeder and leaving the vegetable bed alone is a fine outcome — save the cage for what actually gets hit.