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Field Evaluation of Insecticides for Control of the Alfalfa Blotch Leafminer and Its Effect on Alfalfa Yield in Prince Edward Island

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Abstract:

Toxicity of three pyrethroid, six organophosphorous, and three carbamate insecticides against adults and larvae of Agromyza frontella (Rondani) were evaluated in alfalfa plots in the field. Most of the insecticides reduced alfalfa blotch leafminer damage significantly, but the treatments did not result in significant yield increases. The best control of leafminers resulted when insecticides were applied at the time of peak adult populations and the first sign of larval mining.

Document Type: Research Article

Publication date: June 1, 1981

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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