Effect of Insecticides on the Sugar-Beet Root Aphid, Pemphigus betae1

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Aldrin, lindane and parathion reduced numbers of the sugar-beet root aphid, Pemphigus betae Doane, on sugar beets in greenhouse tests. In field tests there was an increase in yield of beets in both 1958 and 1959 at one of two locations when aldrin and parathion were applied to the soil. The increase appeared to result from aphid control early in the season. Both insecticides reduced the populations of the predator, Thaumatomyia glabra Meigen. By fall the large numbers of T. glabra present in the untreated plots had reduced the numbers or aphids to levels equal to or lower than those of insecticide-treated plots.

Document Type: Research Article

Publication date: December 1, 1961

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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