Effects of Fumigant and Nonfumigant Nematicides on Belonolaimus longicaudatus and Hoplolaimus galeatus Populations and Subsequent Yield of Cabbage. H. L. Rhoades, Professor, University of Florida, Institute of Food and Agricultural Sciences, Central Florida Research and Education Center, P.O. Box 909, Sanford 32771. Plant Dis. 70:581-582. Accepted for publication 26 December 1985. Copyright 1986 The American Phytopathological Society. DOI: 10.1094/PD-70-581.

Two experiments were conducted on Myakka fine sand in which soil fumigant nematicides (dichloropropene and metam-sodium) and nonfumigant nematicides (aldoxycarb, carbofuran, ethoprop, fenamiphos, oxamyl, and terbufos) were tested for their efficacy in reducing population levels of Belonolaimus longicaudatus and Hoplolaimus galeatus and increasing yields of cabbage (Brassica oleracea var. capitata). Both soil fumigants reduced populations of B. longicaudatus and H. galeatus and resulted in increased yields of cabbage. All nonfumigants significantly reduced B. longicaudatus populations and increased yields in one or both experiments but were not effective against H. galeatus. B. longicaudatus caused severe plant and root injury symptoms in untreated plots, but there was no evidence of injury from H. galeatus.