What disease is this?

[Yarg]

This is present on a wild crab tree, and was wondering which disease it is thanks

 

[trampledbyturtles]

Looks like black knot

Common on plum/cherry trees

 

[Prof.Kent]

Agree. We have some wild cherry trees with a lot of it.

 

[Native Hunter]

Are you saying that is on a crabapple and sure it isn't a plum? I thought black knot was only on Prunus species. I admit that I don't know everything about black knot but sure didn't know if could get on crabs.

 

[Yarg]

So I found some other trees with lots of what I think are cherries and it's the same as that tree so I guess it's a cherry tree haha

 

[Yarg]

Do deer like them? They sure hang a long time

 

[Native Hunter]

Cherries would make sense and belong to the Prunus genus. It's common for them to get black knot. Yes, deer will eat cherries.