Apple Borer In My Dolgo Crab Apple Tree

Question

I live in Eastern Ontario. The tree is still alive but part of it didnt leaf out this spring and there were no blossoms. The rear lower part of trunk is spongy. Ive observed the sawdust around the trunk again this week. Can I save the tree. Howndo I kill the insects living inside. What should I do with the spongy area.

Answer 1

Typically, once they have entered the tree, there is little that you can do to stop it. Prevention is key, here.

There are a few things that you can attempt, though. This article will help:

https://www.gardeningknowhow.com/ornamental/trees/tgen/tree-borer-insects.htm