Hostname: page-component-848d4c4894-m9kch Total loading time: 0 Render date: 2024-05-17T17:44:35.826Z Has data issue: false hasContentIssue false
  • English
  • Français

Density of Carduus and Cirsium Thistles in Selected Areas of Maryland

Published online by Cambridge University Press:  12 June 2017

Philip W. Tipping
Philip W. Tipping*
Affiliation:
Maryland Dep. Agric., 50 Harry S. Truman Pkwy., Annapolis, MD 21401
Get access Rights & Permissions [Opens in a new window]

Abstract

In a three county area, the density of musk thistle was higher than plumeless thistle in pastures in the easternmost county, equivalent in the central county, and lower in the westernmost county. Bull thistle was detected frequently, but density was always low. Detection of Canada thistle decreased from east to west.

Keywords

Musk thistle, Carduus thoermeri Weinmplumeless thistle, Carduus acanthoides L. ♯ CRUACCanada thistle, Cirsium arvense (L.) Scop. ♯ CIRARbull thistle, Cirsium vulgare (Savi) Tenore ♯ C3RVUBiological control
Type
Notes
Information
Weed Technology , Volume 6 , Issue 2 , June 1992 , pp. 434 - 436
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. Dewey, H. L. 1901. Canada thistle. U.S. Dep. Agric. Bur. Bot Circ. 27, 14 p.Google Scholar
2. Dunn, P. H., and Rizza, A. 1977. Host specificity of Psylliodes chalcomera, a candidate for biological control of musk thistle. Environ. Entomol. 6:449–454.CrossRefGoogle Scholar
3. Hansen, A. A. 1918. Canada thistle and methods of eradication. U.S. Dep. Agric. Farmers Bull. 1002. 15 p.Google Scholar
4. Kok, L. T. 1986. Impact of Trichosirocalus horridus (Coleoptera: Curculionidae) on Carduus thistles in pastures. Crop. Prot 5:214–217.CrossRefGoogle Scholar
5. Kok, L. T., and Surles, W. W. 1975. Successful biocontrol of musk thistle by an introduced weevil, Rhinocyllus conicus . Environ. Entomol. 4:1025–1027.CrossRefGoogle Scholar
6. McCarty, M. K. 1982. Musk thistle (Carduus thoermeri) seed production. Weed Sci. 30:441–445.Google Scholar
7. Moller-Joop, H., and Schroeder, D. 1986. Urophora solstitialis (L.) (Diptera: Tephritidae), a candidate for the biological control of plumeless thistle (Carduus acanthoides L.) in Canada. Comm. Inst. Biol. Control Final Screening Report. 25 p.Google Scholar
8. Moore, R. J. 1975. The biology of Canadian weeds. 13. Cirsium arvense (L.) Scop. Can J. Plant Sci 55:1033–1048.Google Scholar
9. Moore, R. J., and Frankton, C. 1974. The thistles of Canada. Canada Dep. Agric. Monograph No. 10. Ottawa, Ont.Google Scholar
10. Politis, D. J., Watson, A.K., and Bruckart, W. L. 1984. Susceptibility of musk thistle and related composites to Puccinia carduorum . Phytopathology 74:687–691.Google Scholar
11. Rizza, A., Campobasso, G., Dunn, P. H., and Stazi, M. 1988. Cheilosia corydon (Diptera: Syrphidae), a candidate for the biological control of musk thistle in North America. Ann. Entomol. Soc. Am. 81:225–232.CrossRefGoogle Scholar
12. Stuckey, R. L., and Forsyth, J. L. 1971. Distribution of naturalized Carduus nutans (Compositae) mapped in relation to geology in northwestern Ohio. Ohio J. Sci. 71:1–15.Google Scholar
13. Tipping, P. W., and Hight, S. D. 1989. Status of Rhinocyllus conicus (Coleoptera: Curculionidae) in Maryland. Maryland Entomol. 3:123–128.Google Scholar