If you have hemlock trees on your property, you probably have heard about hemlock wooly adelgid. First discovered in Pennsylvania in 1967, these tiny sap-sucking insects have infected, weakened, and... read more →

Mother Nature treats us to a unique spectacle of leaves changing color every fall. But what triggers the fall leaf color change from a biological point of view? Varying theories... read more →

Girdling roots circle or partially circle a tree’s base or just below the soil surface. Why do roots girdle? How does it affect the tree? Is there a remedy for girdling... read more →

How does beech leaf disease spread? This notorious ailment in trees was first discovered in the United States in 2012 and has wreaked havoc in forests across North America. It... read more →