Yeah I had that last year. I use lime sulfur on all of them in the fall, and copper with Nu film in the spring. In the spring with a low dose of lime sulfur and nu film I hit my grapes. I have had fungal issues with them. Spraying works 100%. One year I had clusters half covered with some kind of fungus. Spraying with lime-sulfur stopped it in it’s tracks and the rest of the clusters made it. Impressive!
Speaking of problems one the guavas looked very yellow. Appeared to be over watered to me. Came that way. It looked the same for days, but seems to be recovering now.
I have an unknown pluot seedling that started to leaf out so I moved it from the garage to the porch and have been bringing it in at night. I’m going to attempt some small grafts on it.