Hi,
I need help in diagnosing one of my parents' citrus tree. Supposedly, it is an orange tree. Not knowing much about citrus and/or graft scion/union, they pruned off the orange section of the tree. The rootstock took over and the tree is now about 5 feet tall.
Eventually, I would like to fix this rootstock/tree with the many citrus scions I got from UCR CCPP. They told me that the tree was once infected with ants/aphids, etc.
I noticed that on MANY areas of the rootstock/tree, there are sections that look like the branches are webbed, or the branches are "melted together". I really don't know how to describe it. It's like cancer or something. Please look at the pictures. Can you tell me what is causing this? Should I try to save the rootstock/tree and/or graft anything to it?
Thanks in advance.