How to Stop Squirrels from Eating Trees: A Comprehensive Guide
Squirrels are charming creatures, but their insatiable appetite for tree bark and nuts can cause significant damage to your trees and landscape. If you're wondering how to stop squirrels from eating trees, you've come to the right place. In this guide, we'll explore the reasons behind this behavior, the damage it can cause, and most importantly, effective strategies to deter squirrels from feasting on your trees.
Understanding Squirrel Behavior
Squirrels are active throughout the year, but their bark-eating behavior is most prevalent during the fall and winter months. During this time, they are preparing for the cold season by caching food and creating reserves. They also engage in a behavior called "winter girdling," where they strip the bark off trees to get at the cambium layer, the tree's food-manufacturing tissue. This can kill the tree, as it prevents the tree from transporting water and nutrients.
Identifying the Damage
Squirrel damage to trees can manifest in several ways. Here are some signs to look out for:

- Stripped bark, often in a smooth, circular pattern around the trunk
- Exposed wood, which can be a entry point for diseases and pests
- Small holes in the bark, where squirrels have cached nuts
- Damaged or uprooted young trees and plants, as squirrels often dig them up to bury their nuts
Deterrent Strategies
Physical Barriers
One of the most effective ways to stop squirrels from eating trees is to physically prevent them from accessing the trunk. Here are a few methods to achieve this:
- Tree Guards: Wrap the trunk of young trees with a flexible, plastic or metal guard. Ensure the guard extends at least 4-5 feet up the trunk to prevent squirrels from climbing over it.
- Chicken Wire or Hardware Cloth: Wrap the trunk with chicken wire or hardware cloth, ensuring it's securely fastened and extends high enough to deter squirrels.
Repellents
While there's no guaranteed squirrel repellent, some products can help deter them. Always follow the manufacturer's instructions and reapply as needed, especially after rain:
- Commercial Repellents: These are available at garden stores and online. They usually contain ingredients like putrescent egg solids, garlic, or hot peppers to repel squirrels.
- Home Remedies: Some homeowners find success with homemade repellents. Apple cider vinegar, hot peppers, or garlic can be mixed with water and sprayed on trees. However, these may need to be reapplied frequently.
Habitat Modification
Making your yard less inviting to squirrels can also help protect your trees:

- Remove or reduce bird feeders, as they attract squirrels.
- Keep your yard tidy by raking leaves and picking up fallen fruits or nuts.
- Trim tree branches that overhang your roof, as squirrels can use these to access your roof and attic.
When to Call a Professional
If you have a large infestation of squirrels or significant damage to your trees, it may be time to call a professional pest control service. They have the tools and expertise to safely and humanely remove squirrels from your property.
In conclusion, while squirrels may be cute, their bark-eating habits can cause serious damage to your trees. By understanding their behavior, implementing deterrent strategies, and staying vigilant, you can protect your trees and maintain a healthy landscape. Happy squirrel-proofing!