A root-collar excavation was performed on this red maple to discover that girdling roots have restricted its growth, drastically affecting the health of the plant. A root-collar excavation was ...

Did you know you may be unknowingly stressing out the trees and shrubs in your yard, consequently reducing their vigor and shortening their life? The area of concern is where the plant meets the ...

Join the Office of Sustainability Saturday, Oct. 14, from 9:30 a.m. to noon for Root Rake Out to improve tree mulching on the quad through a process known as root collar excavation. Sustainability ...

Sep. 8—DANVILLE — The root collar of a tree is an area at the base of the trunk where root tissue and trunk tissue meet. In recent years, the field of arboriculture has started to recognize the ...

PITTSBURGH (KDKA) -- With temperatures in the 60s in August, it's feeling like leaf-peeping season outside, even though it's still summer. And if it looks like you're seeing leaves changing colors ...

Ryan Pankau demonstrates planting a tree wrapped in burlap. Ryan Pankau demonstrates planting a tree wrapped in burlap. DANVILLE- The root collar of a tree is an area at the base of the trunk where ...