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Economic Aspects of Integrated Pest Management Threshold Determination. Gerald A. Carlson, Department of Economics and Business, North Carolina State University, Raleigh 27650. J. C. Headley, Department of Agricultural Economics, University of Missouri, Columbia 65211. Plant Dis. 71:459-462. Accepted for publication 3 February 1987. Copyright 1987 The American Phytopathological Society. DOI: 10.1094/PD-71-0459.

An economic threshold is defined, and steps in compiling information necessary for computing it are described. An example of the determination of a simple economic threshold is given for soybean cyst nematode, using field experiments and best available cost data. More complex economic thresholds with uncertainty and dynamics are described briefly, and possibilities of practical pest disease thresholds are assessed.