Did any of your peaches ever get black knot?
I read apples are immune to black knot. The article said peaches can get it, but are less susceptible than plums.
What do you think about this plan for dealing with black knot?
If you grow plums, apples and peaches. And peaches and apples don’t get black knot. Then just grow plums and disregard the black knot. I had terrible black knot on all my plums, and they still produced fine and were healthy trees otherwise. I cut the plums all down as I was worried my other trees would get infected.
If a tree loses vitality from knot, then cut it down and replace it. All my plums cut down were 13 - 15 years old and showed no sign of problems producing fruit. My trees all had knot for years. I just didn’t know what it was. I thought it was cicada damage.
BTW…Green Gage plum, one of the best eating plums, is highly susceptible to knot. It was the first of my 6 plums to get cut down. Plums are a must to grow around here. All the plums and other stone fruit in the stores are inedible garbage.