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Crab Apple Trees

Q.Flowering Crab tree

Zone just north of Lake Ontario in Belleville | dvgolden1 added on July 11, 2015 | Answered

I noticed some sawdust at the base of the tree. Upon looking closer, I found an area of rotting trunk with evidence of ant tunnels in the rotting area. Can I plug this cavity to help keep tree healthy and what can I use to fill this hole? The tree is approx. 30 years old.

A.Answers to this queston: Add Answer
Answered on July 13, 2015

It is not recommended to fill the hole in the tree trunk.
Ants can sometimes be an indication of a insect issue. The insects produce Honeydew.
You can treat the tree with Neem Oil as it acts as both an insecticide and fungicide.

Here is a few links for you.


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