Since the leaves are falling from the tree, it’s becoming easier to notice changes in the branches and bark. If you find tiny holes across the trunk or sawdust collecting closer to the roots, it may be a cause for concern.

Common Causes of Tiny Tree Holes

There are a few reasons why there may be tiny holes in your tree trunk. Some are more concerning than others.

Wood-boring insects. The larvae of bark beetles or borers create small, oblong holes in random patterns along the trunk. This can damage the vascular system of the tree that transports water and nutrients to help keep the plant healthy. You may notice sawdust-like frass accumulating at the base or tubes of sap, discolored foliage, or dying branches on an affected tree.

Birds. Sapsuckers are a type of woodpecker that drills small, uniform holes in the trunk looking for sap and insects. Other than the neat rows of wells, you may notice sap oozing from the holes, which attracts the insects these birds like to eat. While the shallow holes themselves aren’t fatal to the plant, too many holes in a row can cause girdling which can weaken the tree.

By checking the pattern of the holes and other accompanying signs, it’s easy to determine the culprit. Once you do, it’s time to act to help save your tree from extensive damage.

Protecting Your Tree from Pests

By regularly watering and fertilizing your tree, you can help keep it strong and healthy. Not only does this help protect it from pests that prefer weak, stressed plants, but it also increases a tree’s resilience. If you wrap a tree’s trunk with burlap, this may deter woodpeckers from further damaging the bark. Once you suspect a serious borer infestation or dramatic health decline, it’s best to consult a certified arborist to help diagnose and treat the problem.