Two of my three Bradford pear trees were damaged (hundreds of holes pecked through the bark). I have put up pie tins to keep the bird(s) away, but what do I need to do to repair the tree and keep insects out of the holes. Should I fill the holes with wood filler or some sealer? Thanks
Tree Damage From Woodpecker
Certified GKH Gardening Expert
Filling in the holes can cause further damage, as it traps moisture and disease. If it is just a few holes, treat them with an insecticide and a fungicide (neem oil is nice because it is both) and let them heal over naturally. If it is more than a few holes or they are big holes (more than 1 inch), you can cover the area with hardware mesh to keep animals out.