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The Value of Soil Insect Control in Iowa Corn, 1951–70

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Abstract:

Iowa corn yield data from 132 comparisons of soil treatment with plots receiving no soil insecticide collected over a 20-year period indicated an 8.0 bu/acre increase in favor of aldrin or heptachlor treatment plots of corn following corn. In fields of corn following a crop other than corn, the treated plots averaged 8.7 bu/acre increase in 56 comparisons.

In a series of empirical comparisons involving producers from a cross section of the representative soil types of Iowa, information from 939 fields of first-year corn indicated a 9.3 bu/acre increase in favor of aldrin treatment vs. no treatment. These increases occurred on the best as well as on the poorest soils.

A 1964 sampling of corn growers throughout Iowa indicated that most soil insecticide users farmed more acres than did their nonuser neighbors. In the 30–39 age group, this was an increase of 62% in favor of users of soil insecticides.

Document Type: Research Article

Publication date: August 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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