Dear Master Gardener: We moved into a house and noticed the roots of several trees are girdled. Why did this happen? Answer: Girdling roots are roots that grow in a circular or spiral pattern around ...

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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 ...

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 ...