Reduction of Western Wheatgrass by the Feeding of Two Rangeland Grasshoppers, Aulocara elliotti and Melanoplus infantilil.

Author: Hewiit, G. B.

Source: Journal of Economic Entomology, Volume 71, Number 3, June 1978 , pp. 419-421(3)

Publisher: Entomological Society of America

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The avg reduction per day of western wheatgrass, Agropyron smithii Rydb., by 2 species of rangeland grasshoppers confined in field cages was: adult Melanoplus infantilis Scudder 35.3 mg; adult Aulocara elliotti (Thomas) 60.9 mg; 5th-instar A. elliotti, 39.8 mg; and 4th-instar A. elliotti, 17.9 mg. Forage loss from a density of 1 A. elliotti/m2 was estimated to be 22 kg/ha. Food consumed and grasshopper weight were directly related. More forage was cut but not consumed by adult grasshoppers than by nymphs.

Document Type: Research Article

Publication date: June 1, 1978

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  • 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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