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The European com borer (Pyrausta nubilalis) situation in the United States for 1930 has been a most unfavorable season for the borer. Only 61 newly infested townships were discovered in the one-generation area. and 59 in the two-generation area. In the one-generation area 11,506,154 vehicles were inspected, 279,152 ears of com were intercepted, and 375 borers were found. In the two-generation area 3,997,735 vehicles were inspected, 60,028 ears of corn were intercepted, and 1,297 borers were found. There were no heavy losses in the Great Lakes section this season due to corn borer damage. Decreases in borer population, compared to 1929, of 21 per cent in Michigan, 58 per cent in Ohio, and 29 per cent in Pennsylvania, were indicated; and increases of 35 per cent in Indiana, and 11 per cent in New York were shown. Losses in sweet corn, as well as to susceptible vegetables and flowering plants, occurred in the most heavily infested portions of southern Massachusetts and Rhode Island.
Document Type: Research Article
Publication date: April 1, 1931
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.