diseased rose leaf

agriculture animal anthocyanin are background bacteria berry black blackberry brown bud buding bunch chlorose chlorosis close color conferring croissant cultivated death defense development disease drink eat eaten edible entomology family food forest freshness fruit fruits full fungi green growth herbivor herbivorous horizontal image insects leaf leaflets leaves life losses material mosaic nature necrose necrosis new pathogen pathology people phytopathology pigments plant plants protection purple raw red ripe rosaceae rose vegetables virus wild yellow young zoology