Answer: Unfortunately, based on your description it is impossible to make a diagnosis of the problem. The green color on the trunk may possibly be normal, but the wilting certainly is not. The stress of the drought would contribute to making the tree more susceptible to any number of problems. You might want to consult with your county extension about the tree. Their telephone number is 622-4225. I'm sorry I can't be more helpful.
Q&A Library Searching Tips