Meteorologists are warning that an incoming subzero cold snap comes with an increased risk of "exploding trees." Arborists say it's a real thing that

Q: When I was outside the other day, I saw several tree branches missing big pieces of bark. They are in an area deer can’t reach. What could have caused this? Will the branches recover? A: It is likely squirrels. They tend to remove large pieces of bark ...

As Colorado experiences its signature whiplash weather, arborists are warning that stressed trees are more vulnerable to pests and diseases. Peel back the bark, and you may find a predator in your trees. "See all that tunneling?" asked arborist Mike Dwyer ...

Bark beetles moving between trees routinely carry two fungi that are responsible for the Dutch elm tree disease outbreak.