American holly looks like it is thinning out at the top. It's about 40 years...
American holly looks like it is thinning out at the top. It's about 40 years old and 30feet tall. Is this normal for its age and it is dying? Or could it be caused by insects or diseases? Any suggestions as to what I should do? If a picture will help let me know and I will try to get one.
Howard County Maryland
American holly can look open and airy when mature. We have had reports of European hornets that strip the bark of hollies and lilacs. If possible, you can look for this. Send digital photos of the whole tree and the thinning at the top for more information.