I planted some haskaps, aronia, currents, raspberries, hazelnuts and other herby stuff a few years ago trying to get a little forest garden going.
I got this big old black current bush from someone who didn't want it anymore and planted it. One year I got a ton of woodchips dropped off and did the cardboard / woodchips thing everywhere between all the plants. Maybe later that year, or the next year, the big black current plant started dying; leaves turning yellow, orange and dropping off until dead. Then the same thing started happening to the aronia bush next to it. I thought "hopefully this sorts it self out" and left it at that.
Next year or two the disease is spreading more. I lose more aronia, a hazelnut drops off, as well as a pea shrub. Now, haskaps are getting it and other smaller currents. Some comfrey is looking rough too.
Basically since the disease has been killing stuff, I have left the area alone. Other than coming in with the weed eater hear and there to open things up around the plants. I have attached some pictures here of where things are right now with haskaps, aronias and currents.
Any help on this would be appreciated. I don't want this moving to other things in my yard...