Papaya ringspot virus

Papaya ringspot virus (PRSV) is a plant pathogenic virus in the genus Potyvirus and the virus family Potyviridae

Symptoms
In squash, watermelon and other cucurbits, PRSV strain W causes mottling and distortion of leaves and fruit. PRSV-W is considered to be one of the limiting factors in the growing of cucurbits in Florida.