I only have it on Dwarf Arctic Rose this year (so far). I just pick off the affected fruit when they are very small. OTOH, if you have a lot of plants, that might not be so easy to do. What is weird is that I get it on plants that are in EarthBoxes, where watering never, ever misses a beat. I only replace about 1/4 of the mix in each box every year, and have plenty of Dolomite. None this year on any IND plants. I would say from my experience that it is more common on dwarfs and DET varieties, and slightly more common on OP than hybrids. Never on cherries that I can remember.
|