One lovely morning, you head outside to water and feed your trees just like always. To your horror, though, you spot a large hole smack dab in the middle of your favorite tree’s trunk. Now you’re wondering how to fill a hole in a tree, or if you even should.
Below, our tree service professionals in Kennesaw, GA, explain why holes in trees don’t necessarily need attention from homeowners.
The Whole Truth About Holes in Trees
Holes in trees can crop up for a number of reasons ranging from insect damage to human activity. The good news is that holes usually aren’t fatal.
Tree cavities do not heal like human wounds do. Rather, the tree uses a unique process called compartmentalization to seal away the damaged parts. This is an excellent method of decay prevention. Should the damaged area begin to rot, the decay won’t be able to reach the tree’s healthy tissue.
Holes aren’t a problem unless you’re worried about the tree’s structural integrity or potential mosquito breeding. Very large holes can weaken a tree, potentially causing it to fall over. And holes, when filled with rainwater, make attractive breeding grounds for blood-hungry mosquitoes.
Helping Your Holey Tree Recover
Most expert arborists don’t recommend worrying about how to fill a hole in a tree. The hole will eventually compartmentalize, and your tree will be no worse for wear. Plus, the holes are attractive homes to wildlife, like squirrels and birds.
Instead of filling the hole, which can damage the tree further, it’s best to just try and keep the tree healthy. That means:
- Watering and fertilizing your tree on the right schedule for its species
- Scheduling regular tree pruning
- Keeping an eye out for pests and diseases
If it’s mosquitoes you’re worried about, simply plop a few mosquito dunks in the hole. They’ll kill any larva that ends up in the water. Don’t drill holes in the tree to drain the water; doing so can damage the tree and invite infection.
You can also keep mosquitoes away from the tree by making your property less attractive to them. To do that:
- Get rid of standing water in buckets, plant saucers, trash cans, and bird baths.
- Mow your lawn often to get rid of weeds.
- Drain water from portable pools when you’re not using them.
If you can’t resist filling that gaping hole in your tree, use a lightweight expanding foam to do the job. The foam will expand to fill the hole completely, and it’s flexible enough to move with the tree.
Never fill the hole with gravel, rocks, concrete, or any other inorganic material. Such materials can weigh the tree down, and if you ever need to remove the tree, they’ll be a safety hazard for the unfortunate arborist you hire.
Get Answers to All Your Burning Tree Care Questions
Stop worrying about how to fill a hole in a tree and call our pros at Life’s Tree Doctor. Our ISA-Certified Arborist can inspect your tree and offer advice on how to keep it in tip-top shape. Contact us at (678) 543-5443 to schedule tree service today.
