I have a pecan tree with individual limbs dying to a brown state with no living cambium. This is a 40 year old tree with a twin on the other side of the yard which is fine. These trees gets plenty of water and have been healthy until this year. Some of the limbs on this 45 foot tall tree are green and healthy and there seems to be no pattern to the dead limbs. Can any one help with this problem. It looks like the entire tree may be lost if it continues. Thank you.
