Photo 1. Leaf symptoms on leaves of papaya affected with Papaya ringspot virus - type P. Note the leaves with light yellow and green patches (mosaics), and the deformed leaf on the left.
Papaya ringspot (virus-P)
Papaya ringspot potyvirus-P. The abbreviation for this virus is PRSV. There is another strain of this virus called Papaya ringspot virus-W. These two strains are very similar, except that type PRSV-W does not infect papaya; it infects cucurbits. Previously, the strain infesting cucurbits was known as Watermelon mosaic virus-1.
AUTHOR Grahame Jackson
Information from Davis RI, Ruabete TK (2010) Records of plant pathogenic viruses and virus-like agents from 22 Pacific island countries and territories: a review and an update. Australasian Plant Pathology 39, 265-291; and from CABI (2018) Papaya ringspot virus Crop Protection Compendium. (http://www.cabi.org/cpc/). Photo 1 George Wall, formerly CALS/AES University of Guam. Photo 2 Department of Employment, Economic Development and Innovation, Queensland.
Produced with support from the Australian Centre for International Agricultural Research under project PC/2010/090: Strengthening integrated crop management research in the Pacific Islands in support of sustainable intensification of high-value crop production, implemented by the University of Queensland and the Secretariat of the Pacific Community.
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