Someone's Drilling Holes in My Tree's Trunk! Or Maybe Its Borers!

Sapsucker damage on almond (Neplus)
not borers and not my neighbor's drill

Q. I have a nine year old semi-dwarf green gage plum tree in my yard. About a month ago I noticed about 20 small holes grouped together on one of the limbs. Each hole is a little less than 1/4 " in diameter. I can see no other holes on the tree. It is as if someone had taken a drill and drilled several small holes on the limb, and deep enough to get through the bark and slightly into the flesh of the tree. Any idea what may be causing this? This has never happened before. I did dormant spray the tree in early January. Do I need to spray the tree with insecticide?


A. This is most likely sapsucker damage to the tree. Sapsuckers are birds in the woodpecker family of birds that make holes in trees and feed on the sap or look for insects. I believe they are migratory here and cause damage as they pass through this part of the country.

There's the varmint! Who, me?

 If I am seeing the image in my mind correctly this is not due to insects or borers. This is what the damage looks like. The best control is to protect the trunk or limbs with wire cloth or chicken wire. We have trees that get damaged in the orchard by these birds and they have survived this way many years as long as they are healthy. It is definitely not good for the trees but there are not many other alternatives They seem to like some varieties of fruit trees more than others.