the rose rust fungus caused by a fungus phragmidium mucronatum and p. tuberculatum

leaf yellow flower plant green nature autumn petal tree insect branch invertebrate produce animal sunlight shrub rose rust fungus caused phragmidium mucronatum tuberculatum symptoms ornamental roses garden background black spot bloom brown closeup damage diplocarpon rosae disease flora floral flower foliage fungal fungal infection infections fungicide fungus garden gardening green leaf leaves mildew mushroom natural nature orange parasitic pathogen pathology pest phragmidium mucronatum tuberculatum phytopathology plant rosaceae rose rust roses season spores spring summer symptom