Can someone help me ID this? You see the trail of black oozing down the branch? What is this? It is on a Kinnaird's Choice on mm111.
I normally associate oozing with bacterial diseases. I have seen them most frequently on cherries. I haven't seen that effect on any of my apples. I am not an expert on tree diseases, but no one else answered.
John S
PDX OR
I’m not an expert on tree disease either, especially in North Carolina … but my assumption is that sap ‘snuck past’ the cut before the buds below it could form branches and give it a place to go… I suspect the dark color is due to mold or simply decay of the escaped ‘sap.’
If the rest of the tree appears healthy, which from the photos, it does, I wouldn’t worry. If an entire branch (other than the small darkened shoot) begins to show signs of demise, I’d remove ‘that branch’ from the tree as not to allow pathogens to spread. But from what I can see, it looks fine.
If the shoots around the cut continue to show healthy growth - that should seal and heal the oozing wound with no problem. …and, I was waiting for ‘an expert’ to respond as well 