In rare cases, the damage caused by the holes in the phloem can disrupt the sap flow in the tree causing some dead spots in the trunk.

If the holes are frequent enough, and extend far enough around the trunk’s circumference, the tree can be damaged, as the holes disrupt the necessary flow of sap within the tree.

In this week's Fielding Questions column, Don Kinzler addresses how to prevent woodpecker damage, improving tulip blooms and collecting seeds from flowers.

Fruit trees must be heavily pruned every year or more to produce fruit, says Jean-Claude Rochat, owner of Arborist Now, Inc. "Suckers must be removed, as they are different from the grafting stock and ...

Q: There are several bands of holes around the trunk of my pine tree. Is the tree infested with borers? A: The holes were likely created by sapsuckers. Sapsuckers, members of the woodpecker family ...

Dear Neil: What could be causing these spirals of holes in the trunk of my Lacey oak? The tree seems to be healthy. It had small acorns that dropped early, but that might be due to last winter’s ...

Unfortunately, peach trees are not very long-lived. Most will show signs of decline after about 15 years, even if they were previously vigorous. Some environmental factors, such as drought (or ...

New research reveals some surprising teamwork from ants in Panama. When holes are drilled into trees they live in, the ants can repair the damage.