Additional Alternative Hosts of Phakopsora pachyrhizi, Causal Agent of Soybean Rust. Joann L. Rytter, Biological Laboratory Technician, Plant Disease Research Laboratory, Agricultural Research Service, U.S. Department of Agriculture, Frederick, MD 21701. W. M. Dowler and K. R. Bromfield, Research Plant Pathologists, Plant Disease Research Laboratory, Agricultural Research Service, U.S. Department of Agriculture, Frederick, MD 21701. Plant Dis. 68:818-819. Accepted for publication 6 May 1984. This article is in the public domain and not copyrightable. It may be freely reprinted with customary crediting of the source. The American Phytopathological Society, 1984. DOI: 10.1094/PD-68-818.

Thirty-five species within 23 genera of legumes were tested for reaction to Phakopsora pachyrhizi, the soybean rust causal organism. Twelve species are reported as new alternative hosts, including Coronilla varia, Lespedeza striata, Lupinus luteus, Sesbania sericea, and Trifolium repens. Many of the hosts shown to be susceptible to P. pachyrhizi are common in the southern United States and could serve as overwintering hosts for this pathogen.