Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-27T19:35:06.312Z Has data issue: false hasContentIssue false
  • English
  • Français

Twenty-year Control of California False-hellebore

Published online by Cambridge University Press:  12 June 2017

M. Coburn Williams
M. Coburn Williams*
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., Poisonous Plant Res. Lab., 1150 E. 1400 N., Logan, UT 84321
Get access Rights & Permissions [Opens in a new window]

Abstract

Experimental plots treated with 2,4-D amine at 2.2 kg ae ha-1 in 1968 and 1969 to control California false-hellebore were evaluated in July 1989 to determine long-term control of California false-hellebore, changes in foliar cover, and increases in production of desirable species. Control of California false-hellebore was 100% on all treated plots. The foliar cover on treated plots averaged 78% grasses and sedge, 20% broadleaf plants, and no California false-hellebore. Control plots averaged 85% California false-hellebore, 10% grasses and sedge, and 4.5% broadleaf plants. Vegetative production of grasses and sedge was 3.8 times greater on treated plots compared with controls.

Keywords

2,4-D, (2,4-dichlorophenoxy)acetic acidCalifornia false-hellebore, Veratrum californicum Durand ♯ VEACALiliaceaepoisonous plantVeratrum californicumVEACA
Type
Research
Information
Weed Technology , Volume 5 , Issue 1 , March 1991 , pp. 40 - 42
Copyright
Copyright © 1990 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Binns, W., Shupe, J. L., Keeler, R. F., and James, L. F. 1965. Chronologic evaluation of teratogenicity in sheep fed Veratrum californicum . J. Am. Vet. Med. Assoc. 147:839–842.Google Scholar
2. Cook, C. W., and Stubbendieck, J. L. 1986. Range Research: Basic Problems and Techniques. Soc. Range Manage. (Publ.), Denver, CO, p. 56–61.Google Scholar
3. Keeler, R. F. 1969. Teratogenic compounds of Veratrum californicum (Durand). VI. The structure of cyclopamine. Phytochemistry 8 223–225.Google Scholar
4. Keeler, R. F. 1978. Cyclopamine and related steroidal alkaloid teratogens: their occurrence, structural relationship, and biologic effects. Lipids 13:708–715.CrossRefGoogle ScholarPubMed
5. Shaw, R. J. 1989. Vascular Plants of Northern Utah. Utah State University Press, Logan, UT. 412 p.Google Scholar
6. Williams, M. C., and Cronin, E. H. 1968. Dormancy, longevity, and germination of seed of three larkspurs and western false hellebore. Weed Sci. 16:381–384.CrossRefGoogle Scholar
7. Williams, M. C., and Cronin, E. H. 1981. Ten-year control of western false hellebore (Veratrum californicum). Weed Sci. 29:22–23.CrossRefGoogle Scholar
8. Williams, M. C., and Kreps, L. B. 1970. Chemical control of western false hellebore. Weed Sci. 18:481–483.Google Scholar