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Ten-Year Control of Western False Hellebore (Veratrum californicum)

Published online by Cambridge University Press:  12 June 2017

M. C. Williams  and
E. H. Cronin
M. C. Williams
Affiliation:
U.S. Dep. Agric., Sci. Ed. Admin., Agric. Res., Poisonous Plant Res. Lab., Logan, UT 84321
E. H. Cronin
Affiliation:
U.S. Dep. Agric., Sci. Ed. Admin., Agric. Res., Poisonous Plant Res. Lab., Logan, UT 84321
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Abstract

Plots of western false hellebore (Veratrum californicum Durand), treated in 1968 and 1969 with 2,4-D [(2,4-dichlorophenoxy)acetic acid] at 2.2 kg/ha, were reexamined in July 1979 to determine vegetative changes, especially any increases in the production of desirable species and long-term control of western false hellebore. Grass, sedge, and rush production had doubled, and broadleaved plant production, excluding western false hellebore, which was eliminated, decreased on treated plots. Western false hellebore had not reinvaded the treated plots; control remained at 100% for 10 yr. Removal of the western false hellebore on treated plots allowed an increase in grass, sedge, and rush production of 1,500 kg/ha over check plots.

Keywords

Liliaceaepoisonous plants
Type
Research Article
Information
Weed Science , Volume 29 , Issue 1 , January 1981 , pp. 22 - 23
Copyright
Copyright © 1981 by the Weed Science Society of America 

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References

Literature Cited

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