Verticillium Wilt of Tagetes spp.. R. B. Hine, Professor, Department of Plant Pathology, University of Arizona, Tucson 85721. A. H. McCain, Extension Plant Pathologist, Department of Plant Pathology, University of California, Berkeley 94720. Plant Dis. 68:1098. Accepted for publication 27 August 1984. Copyright 1984 The American Phytopathological Society. DOI: 10.1094/PD-68-1098.

Verticillium wilt of Tagetes spp., caused by Verticillium dahliae, is described for the first time. The disease was noted in Sinaloa, Mexico, and Shasta County, CA, in 1981. Twelve cultivars of T. erecta, four cultivars of T. patula, one cultivar of T. tenuifolia, and two cultivars of T. erecta × T. patula were shown to be susceptible to the isolates of V. dahliae from Mexico and California in greenhouse studies. Isolates of V. dahliae from cotton and chrysanthemum were also pathogenic to T. erecta cultivar Red Rooster.