Q: I have an 8-year-old oak tree. It looks like it has a girdling root. Should we cut through the root in two places so it can be removed, or should we leave well enough alone. A: Definitely trim and ...

Most plants form symbioses with mycorrhizal fungi since their emergence on land hundreds of millions of years ago. Depending on the availability of carbon (C), these symbioses employ two nutrient ...

Purdue Landscape Report: Stop me if you’ve heard this one…. A tree is in a slow decline year after year. You are called to your client’s property only to find the root flare well below grade. Most ...