Computer Simulation for Predicting the Number of Stethorus punctum Needed to Control the European Red Mite in Pennsylvania Apple Trees

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In Pennsylvania apple orchards, control of Panonychus ulmi (Koch) is achieved by dinocap and the predator Stethorus punctum (LeConte). A decision-making table is proposed for determining the minimum number of S. punctum necessary to control a given sized European red mite population. This table is based on a mathematical model of the relationship between S. punctum populations and mite populations necessary for successful European red mite control. The parameters utilized in constructing this model were: the rate at which dinocap suppresses a mite population; the S. punctum predation rate; temperature and its effect on the rate of mite population growth; and the rate at which S. punctum populations increase.

Document Type: Research Article

Publication date: April 1, 1975

More about this publication?
  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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