QuestionI have 2 Bradford Pear trees with holes bored into them. The holes are probably 1/4 inch in diameter and they are in straight rows and columns. They cover much of the visible trunk. I have been told they are probably wood boring beetles, but from a previous answer I saw from you, they might be caused by woodpeckers. Does this mean the trees are going to die? Is there anything I can do to save them? The trees are between 13 and 15 years old.
AnswerThese are woodpeckers (sap suckers). The birds are making the holes and attracting insects to the sap and then the bird returns and eats the insects. You can stop the woodpeckers by spraying a common insecticide on the trunk this will kill and prevent insect attack and the birds will leave liquid Sevin is a good one to use.