VIEW ARTICLE

Enumeration of Fusarium oxysporum f. pisi Race 5 Propagules from Soil. D. D. Roberts, Research Technician, Agricultural Research Service, U.S. Department of Agriculture, Prosser, Washington 99350, Present address of senior author: Agronomist, Agricultural Research Service, U.S. Department of Agriculture, Corvallis, Oregon 97331; J. M. Kraft, Research Plant Pathologist, Agricultural Research Service, U.S. Department of Agriculture, Prosser, Washington 99350. Phytopathology 63:765-768. Accepted for publication 27 December 1972. DOI: 10.1094/Phyto-63-765.

Five of 24 media tested distinguished races 1, 2, 4, and 5 of Fusarium oxysporum f. pisi when recovered from artificially infested soil. Of the five media, highest populations of F. oxysporum f. pisi race 5 in naturally infested soil were recorded with the PCNB medium of Nash and Snyder.