Effect of Nematicide Treatments on Nontarget Nematode Populations Associated with Corn. J. D. Smolik, Plant Science Department, South Dakota State University, Brookings 57007. Plant Dis. 67:28-31. Accepted for publication 5 May 1982. Copyright 1983 American Phytopathological Society. DOI: 10.1094/PD-67-28.

Aldicarb was highly toxic to populations of Dorylaimida in corn. Although carbofuran and terbufos were less toxic than aldicarb, significant reductions in Dorylaimida populations occurred in 25–60% of the treated fields. Microbial-feeding nematodes were generally less sensitive to nematicide treatments, with reductions in populations occurring in 13–50% of the fields. Aldicarb was again more toxic than carbofuran or terbufos.

Keyword(s): Diabrotica spp., insecticides, nutrient cycling.