Dynamics of Aldicarb Soil Residues Associated with Pratylenchus penetrans Control in Dry Bean Production. A. P. Elliott, Department of Plant Pathology and Physiology, Virginia Polytechnic Institute and State University, Blacksburg 24061. G. W. Bird, Department of Entomology, R. A. Leavitt, Pesticide Research Center, and L. M. Rose, Department of Entomology, Michigan State University, East Lansing 48824.. Plant Dis. 68:873-874. Accepted for publication 5 April 1984. Copyright 1984 The American Phytopathological Society. DOI: 10.1094/PD-68-873.

Aldicarb at 0.86, 1.72, 2.31, 2.88, and 4.62 kg a.i./ha was used to control Pratylenchus penetrans on navy bean (Phaseolus vulgaris) in Michigan. All treatments significantly reduced population densities of P. penetrans. Soil residues of aldicarb were directly related to the rate of application, and the residues decreased throughout the growing season. Eighty days after application, aldicarb soil residues were detectable only at application rates of 2.88 and 4.62 kg a.i./ha.

Keyword(s): root-lesion nematode.