We don’t often think about the roots of trees until there is a problem. A forester friend of mine called it a “fencepost mentality.” Being underground, they are often out of sight out of mind. However ...

Large trees often develop surface roots that can damage sidewalks, mower blades, and tree health. Mulch 2–3 inches deep to cover roots safely and reduce maintenance without harming the tree. Never cut ...

Tree roots growing at or slightly above the soil surface are called surface roots. Homeowners having trees with these surface roots are frustrated with the additional challenges posed by mowing and ...

Here's how to measure the critical root zone of a tree, so you'll know how to dig around it without injuring its roots.

Q: We moved to a property where there are many shallow, large roots spreading out from a mature tree in the lawn, and the roots have holes in a few places. Should we fill them in to prevent rot? A: ...

A person prepares to transplant a tree in their garden. Photo courtesy Getty Images. Welcome to our tree column, “Ask your local arborist.” Each month, arborists from the Davey Tree Expert Company in ...

Q: I am having a problem in finding a source for DNA testing of plants. (Everything I've found online is for determining human parentage.) My neighbor's large avocado tree, planted 3 feet from my ...

Mushrooms growing on trees can be a sign of decay and should be inspected by a certified arborist. Hispidus, Ganoderma, and Armillaria are three types of fungi that can indicate tree risk. Not all ...

EAST LANSING, MI – Agricultural researchers want to determine where across Michigan two types of root rot are killing Christmas trees – a major crop commodity in the state. The U.S. Department of ...