Q.I Have A 50 Year Old Satsuma Seedless Tree That Is Having White Foam Coming From The Trunk
It is also oozing out some liquid. Some of the bark has come off of the tree trunk. On the tree itself it looks healthy with lots of fruit on it. They usually are ripe around December/January. It has for the most part always had wonderful fruit. Can this tree be saved or do we need to get rid of it?
Certified GKH Gardening Expert
I will assume that this is a Satsuma citrus, not plum, due to the area in which you reside. If this is, indeed, the case then your tree is quite aged! This is, relatively, old for any citrus species.
With this being said, your tree is prone to many issues that would not be a problem for a younger, healthier tree. In this case, this is Bacterial Slime Flux. Not a deadly disease, but it does mean that your tree needs attention. Usually, a feeding will take care of the issue. Here is an article that will help:
https://www.gardeningknowhow.com/ornamental/trees/tgen/wetwood-bleeding-trees.htm