Tree borer control in Maryland

Asked April 6, 2018, 4:10 PM EDT

I have many borer holes in the trunk of my tree. I am located in Pikesville, just outside Baltimore. I am aware that imidacloprid is banned in Maryland. How can I save the tree. It is still very much alive, and all I see are the holes, I have not seen the insects, nor do I see sap. What to do. I am enclosing some pictures. Thank you for your help.

Baltimore County Maryland

1 Response

Your tree is showing signs of sapsucker damage. These birds feed on sap and the insects entrapped by the sap. You can wrap barriers of 1/4 inch hardware cloth, plastic mesh, or burlap around injured areas to discourage further damage from feeding. This method may be practical for high value ornamental or shade trees.