Previous View
APSnet Home
Plant Disease Home



Occurrence of Nematophagous Fungi in Cyst Nematode Populations. D. H. Crump, Research Nematologist, Rothamsted Experimental Station, Harpenden, Hertfordshire, England. R. M. Sayre, Research Plant Pathologist, Nematology Laboratory, Plant Protection Institute, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, MD 20705; and L. D. Young, Research Plant Pathologist, Nematology Research, Agricultural Research Service, U.S. Department of Agriculture, West Tennessee Experiment Station, Jackson, TN 38301. Plant Dis. 67:63-64. Accepted for publication 20 May 1982. 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, 1983. DOI: 10.1094/PD-67-63.

Females of the soybean cyst nematode and soil samples collected from several soybean-growing areas of Tennessee in July 1981 were examined for fungal pathogens with potential as biological control agents of the nematode. Females infected with Nematophthora gynophila were isolated at three sites from five samples of roots, and resting spores of the fungus were found at five sites in nine soil samples, including two sites where the nematode is declining. Females infected with Catenaria auxiliaris and resting spores of Verticillium chlamydosporium were also found. These fungi control populations of cereal cyst nematode in England.