Samples were tested against seven viruses, including Cucumber mosaic virus (CMV), Cucumber green mottle mosaic virus (CGMMV), Melon necrotic spot virus (MNSV), Papaya ringspot virus-watermelon strain (PRSV-W, formerly known as Watermelon mosaic virus-1), Squash mosaic virus (SqMV), Watermelon mosaic virus-2 (WMV-2), and Zucchini yellow mosaic virus (ZYMV), using dot-immunobinding assay (DIBA).

New weed host species were found to be infected with PRSV. Some weed species contained possible new viruses.

Ali et al. (2012) Distribution of Viruses Infecting Cucurbit Crops and Isolation of Potential New Virus-Like Sequences from Weeds in Oklahoma Plant Disease, Volume 96, Issue 2, Page 243-248, February 2012. 

http://dx.doi.org/10.1094/PDIS-05-11-0419