VIEW ARTICLE

Etiology

Identification of the Races of Fusarium oxysporum f. sp. melonis Causing Wilt of Muskmelon in California. J. V. Leary, Department of Plant Pathology, University of California, Riverside, 92502; W. D. Wilbur, Department of Plant Pathology, University of California, Riverside, 92502. Phytopathology 66:15-16. DOI: 10.1094/Phyto-66-15.

Fusarium oxysporum f. sp. melonis was identified as the cause of wilt in two fields in Riverside County, California. The isolates of the fungus were tested on muskmelon cultivars differentially resistant to Races 1 to 4 of Fusarium oxysporum f. sp. melonis. Results showed that these isolates were of Races 2 and 3 that were previously unreported in the U.S.