Hostname: page-component-76fb5796d-vfjqv Total loading time: 0 Render date: 2024-04-26T07:04:43.122Z Has data issue: false hasContentIssue false
  • English
  • Français

Damage to Common Ragweed (Ambrosia artemisiifolia) Caused by the White Rust Fungus (Albugo tragopogi)

Published online by Cambridge University Press:  12 June 2017

H. Hartmann  and
A. K. Watson
H. Hartmann
Affiliation:
Dep. Plant Sci., Macdonald Campus of McGill Univ., Ste-Anne-de-Bellevue, Que., Canada H9X 1CO
A. K. Watson
Affiliation:
Dep. Plant Sci., Macdonald Campus of McGill Univ., Ste-Anne-de-Bellevue, Que., Canada H9X 1CO
Get access Rights & Permissions [Opens in a new window]

Abstract

The plant pathogenic fungus Albugo tragopogi (Pers.) S. F. Gray (“white rust”), isolated from a local population of common ragweed (Ambrosia artemisiifolia L.) and inoculated into ragweed seedlings at the two-leaf stage, reduced pollen production by 99%, seed production by 98%, and top weight by 79% of plants that developed systemic disease symptoms while growing in a controlled environment. However, only 14% of the inoculated plants developed systemic symptoms. A convenient method of inoculating leaves of seedling plants with zoospores of a fungus is described.

Keywords

Pathogenpollen productionsystemic infection
Type
Research Article
Information
Weed Science , Volume 28 , Issue 6 , November 1980 , pp. 632 - 635
Copyright
Copyright © 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. Barr, A. J., Goodnight, J. H., Sall, J. P., and Helwig, J. T. 1976. A user's guide to SAS, 76. SAS Institute Inc., Raleigh, North Carolina. 329 p.Google Scholar
2. Bassett, I. J. and Frankton, C. 1971. Canadian Havens from Hay Fever. Information Canada, Ottawa, Ontario. 28 pp.Google Scholar
3. Bassett, I. J. and Crompton, C. W. 1975. The biology of Canadian weeds. II. Ambrosia artemisiifolia L. and A. psilostachya DC. Can. J. Plant Sci. 55:463–476.CrossRefGoogle Scholar
4. Bassett, I. J., Holmes, R. M., and MacKay, K. H. 1961. Phenology of several plant species at Ottawa, Ontario, and an examination of the influence of air temperatures. Can. J. Plant Sci. 41:643–652.CrossRefGoogle Scholar
5. Bianchi, D. E., Schwemmin, D. J., and Wagner, W. H. Jr. 1959. Pollen release in the common ragweed (Ambrosia artemisiifolia . Bot. Gaz. 120:235–243.CrossRefGoogle Scholar
6. Boyette, C. D., Templeton, G. E., and Smith, R. J. Jr. 1979. Control of winged waterprimrose (Jussiaea decurrens) and northern jointvetch (Aeschynomene virginica) with fungal pathogens. Weed Sci. 27:497–501.CrossRefGoogle Scholar
7. Daniel, J. T., Templeton, G. E., Smith, R. J. Jr., and Fox, W. T. 1973. Biological control of northern jointvetch in rice with an endemic fungal disease. Weed Sci. 21:303–307.CrossRefGoogle Scholar
8. Dickerson, C. T. Jr. and Sweet, R. D. 1971. Common ragweed ecotypes. Weed Sci. 19:64–66.CrossRefGoogle Scholar
9. Ferrant, W. J. and Bayer, G. H. 1966. Evaluation of herbicides for parsley. Proc. Northeast. Weed Control Conf. 20:29–30.Google Scholar
10. Harris, P. and Zwölfer, H. 1968. Screening of phytophagous insects for biological control of weeds. Can. Ent. 100:295–303.CrossRefGoogle Scholar
11. Payne, W. W. 1964. A re-evaluation of the genus Ambrosia (Compositae.). J. Arnold Arbor., Harv. Univ. 45:401–428.CrossRefGoogle Scholar
12. Vengris, J. 1953. Weed populations as related to certain cultivated crops in Connecticut River Valley, Massachusetts. Weeds 2:125–134.CrossRefGoogle Scholar
13. Vyalykh, A. K. and Zheryagin, V. G. 1977. (Factors contributing to the infection of common ragweed (Ambrosia artemisiifolia) by the white rust causal agent, Albugo tragopogonis Schroet.). Mikologiya i Fitopatologiya 11:135–139, (in Russian). (Abst. Weed Abst. 27:289).Google Scholar