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Evaluation and Projection of Lygus Damage to Sugarbeet Seedlings

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Abstract:

In a 24-h period, lygus bugs (Lygus spp.) caged 1/plant can kill 72% and injure 18% of the sugarbeet plants in the cotyledon stage and can kill 17% and injure 66% of plants in the 2-leaf stage. No seedling plants in the 4-leaf stage were killed and injury was minimal. Thus, control measures against Lygus should be initiated when the beets are in the cotyledon and 2 leaf stages. It is estimated that one Lygus adult can kill an avg 0.85 seedling plants/day. The number of seedlings that will be damaged on successive days thus can be estimated if one knows the number of Lygus.

Document Type: Research Article

Publication date: April 1, 1978

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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