Papaya ringspot virus W

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symptoms of Papaya ringspot virus W infections on a) and b) bottle gourd, c) cucumber, d) melon, e) ridge gourd, f) pumpkin, g) snake gourd and h) Chenopodium amaranticolor
Author(s): S. Kumar, A. Sankarlingam and R. Rabindran
Source: Journal of Plant Pathology & Microbiology (2014) vol. 5, art. 225
symptoms on pumpkin (Cucurbita pepo)
Author(s): Mary Ann Hansen, Virginia Polytechnic Institute and State University
Source: IPM Images

Papaya ringspot virus W (PRSV-W)

This virus is widely distributed in tropical and subtropical regions. It has been originally described as the watermelon strain of Papaya ringspot virus. While watermelon is the most common host, the virus has been also reported to infect other cucurbits as well as some hostplants from outside the Cucurbitaceae. Symptoms include leaf mosaic, leaf deformation, vein clearing and vein thickening.