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Experimental control of an infestation of range grasshoppers with 16 fl oz ULV carbaryl (Sevin®-4-oil/acre) (0.5 lb AI/acre) applied by aircraft was conducted to study the pickup of toxicant by Aulocara elliotti (Thomas). Caged grasshoppers were subjected to 5 treatments: (1) sprayed food; (2) sprayed soil; (3) sprayed grasshoppers; (4) sprayed food, soil, and grasshoppers; and (5) untreated. Highest mortalities, 95 and 93%, were achieved with treatments 4 and 1, respectively. These were significantly greater than the 46, 13, and 2% that were recorded with treatments 3, 2, and 5, respectively. Grasshopper mortality occurred over an extended time period after the single spray application. Cumulative percent mortality due to treatments 1, 4, 3, and 2 increased daily until ca. 11, 8, 5, and 3 days, respectively.
Document Type: Research Article
Publication date: October 1, 1974
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.