Cage Tests of the Effectiveness of Insecticidal Dusts for the Control of the Cotton Flea Hopper
Author: EWING, K. P.
Source: Journal of Economic Entomology, Volume 24, Number 4, August 1931 , pp. 821-827(7)
Publisher: Entomological Society of America
Abstract:During the summer of 1930 a new method of conducting toxicity tests for control of the cotton flea hopper (Psallus seriatus Reut.) was put into practice which proved entirely satisfactory. Small cages, 18 inches by 18 inches by 24 inches, covered with fine-mesh brass wire cloth and designed to rest on a stool 1 foot high, were used. Approximately 50 insects were placed in each cage for each test. By allowing the host plant to touch the top of the cage the average mortality at the end of four days in the check cages was reduced below 10 per cent.
Seventeen insecticides, combinations of insecticides, or inert materials were tested as dusts for their toxic effects upon the cotton flea hopper. A total of 193 toxicity tests were completed, and there were also 56 cages in which the insects were left untreated as checks. In one hundred and twenty-two of the test cages adults were placed on croton, in forty-nine nymphs were placed on croton, and in twenty-two adults were placed on cotton.
Document Type: Research Article
Publication date: August 1, 1931
- 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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