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Western Corn Rootworm Egg Distribution and Adult Emergence Under Two Corn Tillage Systems1

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Abstract:

Under a conventional plowing system, eggs of Diabrotica virgifera LeConte were more uniformly deposited in the top 6 inches of the soil profile than under a reduced strip tillage system which resulted in heaviest egg deposition in the furrow or ridge. Equal numbers of eggs were deposited in both systems. After corn was planted, more eggs occurred in the seedling zone in conventionally planted corn; in till-plant corn, eggs were removed from the seed row and eggs concentrated in the furrow were covered with additional soil. Adult emergence was 5-10 days later in till-plant corn than in the conventional till-age system.

Document Type: Research Article

Publication date: October 1, 1968

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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