pocket plum taphrina pruni diseased misn plum fruit

plant green flower leaf produce food branch nature fruit blossom petal tree shrub bud wildflower yellow insect pocket plum taphrina pruni diseased misshapen spores prunus agriculture bladder gall blumeria graminis book claviceps purpurea close-up closeup deformation disease ergot exoascus foliage fungal infection fungicides fungus garden gardening leaves mushroom paper pathogen pest phytopathology potatoes domestica puccinia dispersa recondita sickness stem rust symptom fruit