A 5-Year Report of Observations in the Japanese Beetle Control Area at Sheldon, ILLinois1

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Beginning in the spring of 1954 and continuing through 1958, dieldrin was applied by the Division of Plant Pest Control Agrieultural Researeh Serviee, U. S. Department of Agriculture, and the Illinois Department of Agriculture for suppression of a local infestation of Japanese beetles (Popillia japonica New.) near Sheldon, Illinois. During this 5-year period dieldrin was broad east over 17,844 acres of Illinois farm land at a dosage of 2 or 3 pounds of toxicant per acre. Records were obtained on the effeets of the treatment on the Japanese beetle, other insects, earthworms, and livestock.

One treatment of dieldrin gave excellent control of Japanese beetle Iarvae during the 5 years covered by this study. Many other insects that come in occasional or frequent contact with the treated soil were controlled for periods ranging from 1 to 5 years. Populations of a few economic insects increased following the treatments of dieldrin, but the increase was not great enough to warrant additional control measures.

Some predators were adversely affected or eliminated by the dieldrin, whereas other predators and parasites appeared not to be harmed. The treatment did not eliminate earthworms.

Farm livestock confined to pastmes or farm lots treated by airplane with 20 or 30 pounds of 10% granulated dieldrin peracre showed no in effects. However, poisoning and death oecurred in livestock, particularly sheep, exposed to drift from acrial sprays of 3 pounds of dieldrin per acre.

The magnitude of dieldrin residues found on forage treated with granulated dieldrin depended to a considerable extent on the condition of the forage at the time it was treated.

Document Type: Research Article

Publication date: October 1, 1960

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  • 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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