plant diseases. rusty green leaves of a tree close-up. the breeze sways pear leaves green with orange spots. bad gardening.

pear tree disease leaves aecia rust fruit yellow aecium agriculture background branch closeup color spot damage trellis environment foliage fungal fungi rusty fungicide fungus fuscum gall garden green growth gymnosporangium sabinae horticulture infection infestation orange parasite pathogen pathogenic pathology pest phytopathology plant puccinia pyrus red sabina spores tremella unhealthy diseases close-up breeze sways spots bad gardening garden people