Pear tree infected with spot fungus. Light micrograph of tissue from a pear (Pyrus sp.) tree infected with the Venturia pyrina fungus, which causes bl

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Pear tree infected with spot fungus. Light micrograph of tissue from a pear (Pyrus sp.) tree infected with the Venturia pyrina fungus, which causes black spot. Magnification: x37 when printed 10 centimetres wide.

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Size: 5368px × 3579px
Photo credit: © DR KEITH WHEELER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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