How do you know if your tree is infected? The name says it all: The Shot Hole Borer burrows into different trees in burrows smaller than a ballpoint pen tip.
Your tree will not die quickly or easily. As the tiny PSHB beetle lives inside the wood it is unlikely to be noticed crawling on the bark.
Depending on the tree, identification differs. Sings of infestation could be sawdust collecting on the bark and around the base of the tree, in other trees there may be an oozing of liquid and gum from the beetle holes.
Here’s a closer look at the PSHB, and how you can spot infestation.