Journal of Economic Entomology (1978) 71, 419-421

G.B. Hewitt (1978)
Reduction of western wheatgrass by the feeding of two rangeland grasshoppers, Aulocara elliotti and Melanoplus infantilis
Journal of Economic Entomology 71 (3), 419-421
Abstract: The average reduction/day of western wheatgrass (Agropyron smithii) by two species of rangeland grasshoppers confined in field cages was investigated. Adult Melanoplus infantilis reduced the grass by 35.3 mg, adult Aulocara elliotti reduced it by 60.9 mg, 5th instar A. elliotti reduced it by 39.8 mg, and 4th instar A. elliotti reduced it by 17.9 mg. Forage loss from a density of. one A. elliotti/m² was estimated to be 22 kg/ha. Food consumed and grasshopper weight were directly correlated. More forage was cut but not consumed by adult grasshoppers than by larvae.
(The abstract is excluded from the Creative Commons licence and has been copied from Acridological Abstracts with permission by NRI, Univ. of Greenwich at Medway.)

Research topic(s) for pests/diseases/weeds:
damage/losses/economics

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aulocara elliotti	Grasses/turf/rangeland
	Melanoplus infantilis	Grasses/turf/rangeland