Host Densities in a Transient Plant Community and Their Effects on Portions of the Arthropod Community

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Nine different planting densities were utilized to investigate the effects of host plant spatial designs on the arthropod community asociated with Radar-2 oats (Avena sativa L.). The oats were seeded in 3-, 6-, and 12-in. row widths at I, 2, and 4 bu/acre. Sampling was conducted by the removal sweep method throughout the 1963-64 growing season.

The smallest number of phytophagous arthropods per plant was recovered from the plantings having 3-in. row widths, planted with 1 and 2 bu of seed per acre, respectively. Other plots appeared less favorable except for those with 12-in.-row widths sown at 1 bu/acre, in which the highest predator-prey ratio was noted.

Document Type: Research Article

Publication date: June 1, 1966

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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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