Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-28T13:51:52.544Z Has data issue: false hasContentIssue false
  • English
  • Français

Potential Biological Control Agents for Goosegrass (Eleusine indica)

Published online by Cambridge University Press:  12 June 2017

Suzanne S. Figliola ,
N. D. Camper  and
W. H. Ridings
Suzanne S. Figliola
Affiliation:
Dep. Plant Pathol. and Physiol., Clemson Univ., Clemson, SC 29634-0377
N. D. Camper
Affiliation:
Dep. Plant Pathol. and Physiol., Clemson Univ., Clemson, SC 29634-0377
W. H. Ridings
Affiliation:
Dep. Plant Pathol. and Physiol., Clemson Univ., Clemson, SC 29634-0377
Get access Rights & Permissions [Opens in a new window]

Abstract

Two leaf-spotting pathogens, [Bipolaris setariae (Saw.)] and [Piricularia grisea (Cke.) Sacc.], were isolated from severely infected goosegrass plants. Pathogenicity tests conducted at 28 C showed that both fungi were 100% effective in infecting goosegrass when given a 72-h dew period. Dew period temperature and duration requirements were tested by inoculating 2-week-old plants with conidial suspensions of each fungus and incubating them in dew chambers (100% relative humidity). Disease index increased as dew period duration increased for both fungi and at all temperatures tested. Infection occurred at all temperatures with an optimum of 24 to 28 C for B. setariae and 28 C for P. grisea. In host range tests, representative plants of the Fabaceae, Malvaceae, Poaceae, and Solanaceae were inoculated with suspensions of either 20 000 or 60 000 spores/ml of each fungus and placed in growth chambers at 28 C. Infection was limited to members of the Poaceae. Sorghum showed a hypersensitive response to B. setariae. Both cultivars of corn developed light symptoms in response to both fungi at 20 000 and 60 000 spores/ml.

Keywords

Goosegrass, Eleusine indica (L.) Gartner. # ELEINFungal pathogensmycoherbicidesELEIN
Type
Special Topics
Information
Weed Science , Volume 36 , Issue 6 , November 1988 , pp. 830 - 835
Copyright
Copyright © 1988 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. Bowers, R. C. 1986. Commercialization of Collego – an industrialist's view. Weed Sci., Suppl. 1. 34:24–25.CrossRefGoogle Scholar
2. Elmore, C. D. 1984. Weed Survey – Southern States. SWSS Res. Rep. Pages 192–198.Google Scholar
3. Hasan, S. 1974. Recent advances in the use of plant pathogens as biological control agents of weeds. Pest Articles and News Summaries 20:437–443.Google Scholar
4. James, W. C. 1971. A Manual of Assessment Keys for Plant Diseases. Canada Dep. Agric. Publ. No. 1458.Google Scholar
5. Kenney, D. S. 1986. Devine – the way it was developed – an industrialist's view. Weed Sci., Suppl. 1. 34:15–16.CrossRefGoogle Scholar
6. Mudge, L. C., Gossett, B. J., and Murphy, T. R. 1984. Resistance of goosegrass (Eleusine indica) to dinitroaniline herbicides. Weed Sci. 32:591–594.CrossRefGoogle Scholar
7. Quimby, P. C. Jr. and Walker, H. L. 1982. Pathogens as mechanisms for integrated weed management. Weed Sci., Suppl. 30:30–34.CrossRefGoogle Scholar
8. Ravenell, D. I. 1985. Evaluation of Bipolaris setariae and a potential biocontrol agent for Brachiaria platyphylla: efficacy and host range studies. Master's Thesis, North Carolina State Univ. Google Scholar
9. Ridings, W. H. 1986. Biological control of stranglervine (Morrenia odorata Lindl.) in citrus – a researcher's view. Weed Sci., Suppl. 1. 34:31–32.CrossRefGoogle Scholar
10. Spencer, E. R. 1968. All About Weeds. Dover Publ., New York.Google Scholar
11. TeBeest, D. O. and Templeton, G. E. 1985. Mycoherbicides progress in the biological control of weeds. Plant Dis. 69:6–10.Google Scholar
12. Templeton, G. E. 1982. Status of weed control with plant pathogens. Pages 29–44 in Charudattan, R. and Walker, H. L., eds. Biological Control of Weeds with Plant Pathogens. John Wiley and Sons, New York.Google Scholar
13. Templeton, G. E. 1982. Biological herbicides: discovery, development, deployment. Weed Sci. 30:430–433.CrossRefGoogle Scholar
14. Templeton, G. E., Smith, R. J. Jr., and TeBeest, D. O. 1986. Progress and potential of weed control with mycoherbicides. Reviews of Weed Sci. 2:1–14.Google Scholar
15. Templeton, G. E., Weidemann, G. J., and Smith, R. J. Jr. 1987. Biological Weed Control. Pages 99–109 in Camper, N. D., ed. Research Methods in Weed Science. South. Weed Sci. Soc., Champaign, IL.Google Scholar
16. Walker, H. L. and Boyette, C. D. Influence of sequential dew periods on biocontrol of sicklepod (Cassia obtusifolia) by Alternaria cassiae . Plant Dis. 70:962–963.CrossRefGoogle Scholar