VIEW ARTICLE

Ecology and Epidemiology

Host Range of Uromyces viciae-fabae. R. L. Conner, Research associate, Plant Science Department, University of Manitoba, Winnipeg, Canada R3T 2N2. Contribution 597, University of Manitoba; C. C. Bernier, professor, Plant Science Department, University of Manitoba, Winnipeg, Canada R3T 2N2. Contribution 597, University of Manitoba. Phytopathology 72:687-689. Accepted for publication 22 September 1981. Copyright 1982 The American Phytopathological Society. DOI: 10.1094/Phyto-72-687.

Rust fungus (Uromyces viciae-fabae) isolates collected from species of Vicia, Lathyrus, and Pisum were used in cross-inoculation studies on a total of 18 Vicia spp., 10 Lathyrus spp., one Lens sp., and one Pisum sp. The isolates had much wider host ranges than previously reported. Isolates of U. vicia-fabae share so many hosts in common that it was impossible to classify them into formae speciales. All of the isolates from native species of Vicia and Lathyrus infected one or more of the crop species, Vicia faba, Pisum sativum, and Lens culinaris. This suggests that these native plant species might have an important role in the epidemiology of rust on these crops.