Disease: Zucchini yellow mosaic virus Pathogen: Zucchini yellow mosaic virus (ZYMV)Hosts: pumpkins, squash, zucchini (Cucurbita spp.)
Even your Thanksgiving pumpkin pie can be affected by plant disease. The discolored and misshapen pumpkins in this picture are infected by Zucchini yellow mosaic virus (ZYMV). This virus is transmitted by aphids and causes mosaic and distortion in pumpkins growing on infected vines. (Courtesy T. A. Zitter).
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