Homicidal Efficiency of Parathion and Disunion for Quarantine Treatment of the Western Tent Caterpillar1,2

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Abstract:

Viable egg masses of Malacosoma pluvial (Dyar) were intercepted in shipments of nursery stock into New York State. To prevent the possibility of this species becoming established in the Northeast, oregano phosphate insecticides were tested in Oregon as ovicides. Dipping eggs masses in parathion (1: 800 solution of 46.7% EC) or disunion (1:250 solution of 48.0% EC) for periods of 1-15 minutes with or without the addition of spray oil, or drenching nursery stock by spraying generally resulted in complete mortality of the eggs. Infested and treated nursery stock shipped to New York and handled under regular commercial channels yielded negligible hatches of larvae which were always abnormal.

Document Type: Research Article

Publication date: August 1, 1969

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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