JIM WEST / SCIENCE PHOTO LIBRARY JIM WEST / SCIENCE PHOTO LIBRARY
Editorial use only.
Diseased grapefruit tree. Close-up of the leaf of a grapefruit tree infected with citrus canker disease. Citrus canker is caused by the bacterium Xanthomonas axonopodis. It affects the health of the trees and the marketability of the fruit. Photographed in Fort Pierce, Florida, USA.
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