Orange Tree Disease
Published (2009-11-28 00:00:00)
QUESTION: I live in S. California. About two -three years ago, my established navel orange started to develop a roughened, black trunk. This has continued to progress, with the bark roughening more and sap flowing. At this time the bark is sloughing off. The upper branches are free of this. What could this be, and is there something that could be done? IMAGE: orange tree trunk ANSWER: Hi Paula,...