Environmental Entomology (1976) 5, 572-574

T.L. Harvey and H.L. Hackerott (1976)
Grasshopper-resistant alfalfa selected in the field
Environmental Entomology 5 (3), 572-574
Abstract: Alfalfa plants resistant to Melanoplus differentialis were obtained by selecting uninjured plants from a field of "Buffalo" alfalfa severely damaged by grasshoppers. Resistance was verified in greenhouse tests with either field-collected adults or reared larvae. Resistance appeared partially effective against other grasshopper species. Plants selected for resistance differed agronomically from susceptible plants and, when grasshoppers were absent, yielded more forage than did susceptible plants.
(copied with permission from Acridological Abstracts)

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Melanoplus differentialis	Alfalfa/lucerne (Medicago sativa)	U.S.A. (mid S)