phyllachora pomigena, cladosporium or schizothyrium pomi covering homegrown apples

phyllachora pomigena cladosporium schizothyrium pomi covering homegrown apples pomi cladosporium pomigena apples harvest fungus pathogen diseases apple tree orchard dirty ugly wipe sooty blotch problem bad disease flyspeck harmless nutrition science plant organic natural produce homegrown covering brown layer fruit garden gardening agriculture home wood bowl wicker picked discoloration patches color spots black autumn food basket preserve