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Population Dynamics of Nematodes in Fields Planted to Soybeans and Crops Grown in Rotation with Soybeans. I. The Genus Pratylenchus (Nemata: Tylenchida) 1

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The influence of crop species on the soil populations of 4 species of Pratylenchus (P. hexincisus Taylor and Jenkins, P. scribneri Steiner, P. neglectus Rcnsch, and P. penetrans Cobb) was studied for 5 years in 16 fields rotated to corn, soybeans, oats, wheat, and forage mixtures. Each field was sampled each year between mid-July and Mid-August. The populations of P. hexincisus, P. scribneri, and P. penetrans increased in soil in which corn was growing. Populations of P. penetrans, P. scribneri, and P. lneglectus increased in soils in which soybeans were growing. P. hexincisus and P. neglectus were capable of producing moderate populations on oats. P. lneglectus was the only Pratylenchus species which built lip on wheat. P. scribneri was found in moderate numbers in fields containing forage mixtures of alfalfa, red clover, and brome grass.

Document Type: Research Article

Publication date: April 1, 1967

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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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