The Activity of Some Insecticides against the Garden Symphylan, Scutigerella immaculata


Source: Journal of Economic Entomology, Volume 57, Number 3, June 1964 , pp. 360-363(4)

Publisher: Entomological Society of America

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Laboratory techniques were developed for comparing the activity of Zinophos® O,O-diethyl O-2 pyrazinyl phosphorothioate; parathion; and Nemacide®, O-(2,4-dichlorophenyl)O,O-diethyl phosphorothioate against the garden symphylan, Scutigerlla immaculate (Newport).

Bioassay of treated soil from field plots, using the garden symphylan, showed that Zinophos at 2½ and 5 Ib/acre was active for 5 week while parathion at 5 Ib and Nemacide at 7½ and 15 Ib were active for 2 weeks or less.

Zinophos at 0.5 ppm in soil killed as fast as 4 ppm of parathion while Nemacide acted more slowly than parathion. When symphylans were exposed to insecticide-treated soil and the survivors removed to clean soil, many of those survivors remained alive.

When symphylans were give 20-min exposures to soil treated with Zinophos or parathion and the exposures alternated with periods of 0-12 hr in clean soil, fewer exposures were required for 90% mortality as the time in clean soil increased. The effect of the absorbed toxicant apparently lasts for at least 12 hr.

Document Type: Research Article

Publication date: June 1, 1964

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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