Q: I have an ash tree that is now going on 4 years old. The woodpeckers have never bothered it but now they are beginning to peck at it. It attracts ants, which are beneficial to the woodpeckers, and I usually let nature take it’s course but should I be concerned about these holes? Are they just superficial and will not harm the tree? I could wrap it but I’m thinking the birds will just move to other areas of the tree.
A: A few woodpecker holes are not a big deal. If they return to the same tree every year the damage could be a problem over the long haul. Sapsuckers will drill small holes to feed on sap and the sap may attract insects.
Your idea for wrapping the tree where the damage is occurring may have some benefit as it may drive them to other nearby trees instead of the one you want to protect. Burlap is a suitable material to try as a wrap. Other materials good for excluding birds include hardware cloth and plastic netting.
It’s not a good idea to leave the wrap on all year as it can trap moisture and cause decay of the bark so it’s good to observe when the birds are active so you can protect your tree at the appropriate times.
Peter L. Warren is the urban horticulture agent for the Pima County Cooperative Extension and the University of Arizona. Email questions and photos to tucsongardensage@gmail.com
