Willow Trees
Q.

willow tree

Zone 70065 | pirate added on June 12, 2017 | Answered

I have a huge California willow tree in my yard and have noticed a hole the size of a basketball. The hole is near the base of the tree approx. 5 inches from the ground. There are ants crawling in the hole but no other insects that I could see. There is something that looks like sawdust but not a lot of it. Is this something I should be concerned about?

A.
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Downtoearthdigs
Certified GKH Gardening Expert
Answered on June 12, 2017

I would recommend having the tree inspected my a qualified Arborist.

You need to determine if these are carpenter ants, as they could damage the tree beyond repair.

https://hortnews.extension.iastate.edu/carpenter-ant

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