Anyone else have this problem...black knot on their sweet treat pluerry?

[scottfsmith]

I had the problem as well… see

Dealing with severe black knot

I have had mild black knot for years. Control was no big deal: find a knot, prune it out. But late last fall I noticed a ton of black knot in my plums. One gage plum was completely covered and I had to take it out. Many other plums had numerous strikes. The particular thing I am noticing in this attack is lots of the smallest limbs have it, usually the strikes are on larger limbs. I didn’t prune out all of those last year because I was not sure they were full infections as all I noticed w…

If you read this you will see Sweet Treat won the prize as the most susceptible, its extreme.

Any time you see a knot, prune it out! If its only on one side of a limb you can just cut the one side off (back to clean wood), but many of yours look all the way around.

I had to remove a major scaffold on my Sweet Treat due to a large knot. It came in handy as a spot to put a Nadia backup graft, it looks like the main Nadia tree is going to die.

Sweet Treat seems like a bust all around at this point. I am going to give it one more chance to fruit this year.