The European corn borer (Pyrausta nubilalis) was discovered in Ontario in 1920. it increased in numbers with remarkable rapidity in the main corn growing counties. By 1926 all corn within an area of twelve hundred square miles was devastated. The normal acreage in two counties dropped from 140.000 to 45.000 acres. In the fall of the same year compulsory clean-up was started and has been continued ever since. As a result of the dean-up each spring there has been a reduction in the infestation, there is an increase in the acreage sown to corn. and the farmers feel that they can again grow corn and escape extensive damage.
Document Type: Research Article
Publication date: April 1, 1931
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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.