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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
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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

Information

Type
Research
Information
Weed Technology , Volume 5 , Issue 1 , March 1991, pp. 40 - 42
Copyright
Copyright © 1990 by the Weed Science Society of America 

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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