Incidence of Fusarium and Pythium spp. in Peach Feeder Roots as Related to Dibromochloropropane Application for Control of Criconemella xenoplax. A. P. Nyczepir, Former Graduate Student, Department of Plant Pathology and Physiology, Clemson University, Clemson, SC 29631. S. A. Lewis, Professor, Department of Plant Pathology and Physiology, Clemson University, Clemson, SC 29631. Plant Dis. 68:497-499. Accepted for publication 14 December 1983. 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-68-497.

Roots of peach trees in 10 commercial orchards with a history of peach tree short life were assayed for Fusarium, Pythium, and Phytophthora spp., Criconemella xenoplax, and feeder root necrosis. Pythium and Fusarium spp. were common in peach feeder roots, but Phytophthora spp. were not isolated. C. xenoplax, the predominant plant-parasitic nematode, occurred in more than 50% of all soil samples. Feeder root necrosis was severe in the presence of C. xenoplax but was not influenced by DBCP application.