早期发现的病毒:早在1959年发表的有关加州瓜类病毒病害的综合性报告说明,西瓜花叶病毒(WMV)、黄瓜花叶病毒(CMV)和西葫芦花叶病毒(SqMV)是发生最为普遍的病毒病。在南部沙漠盆地,WMV的株系最为流行,CMV居中,SqMV少见。在加州中部和北部,CMV和SqMV占优势,而WMV次之。10年后发表的报告再次说明,WMV、 Early detection of viruses: A comprehensive report of melon virus disease in California published as early as 1959 shows that watermelon mosaic virus (WMV), cucumber mosaic virus (CMV) and squash mosaic virus (SqMV) are most commonly occurring Of the virus disease. The WMV strain is most prevalent in the southern desert basin, with a median CMV and a rare SqMV. In central and northern California, CMV and SqMV prevail, followed by WMV. The report published 10 years later shows again that WMV,