Full TGIF Record # 64823
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Web URL(s):http://www.bioone.org/bioone/?request=get-document&issn=0890-037X&volume=014&issue=01&page=0001
    Last checked: 03/25/2016
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http://www.bioone.org/doi/pdf/10.1614/0890-037X%282000%29014%5B0001%3AFEODHA%5D2.0.CO%3B2
    Last checked: 03/25/2016
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Publication Type:
i
Refereed
Author(s):Kadir, Jugah B.; Charudattan, R.; Stall, William M.; Brecke, Barry J.
Author Affiliation:Kadir: Former Graduate Student, and Charudattan: Professor, Plant Pathology Department, Stall: Professor, Horticultural Sciences Department, University of Florida, Gainesville, FL; and Brecke: Professor, West Florida Research and Education Center, Jay, FL
Title:Field efficacy of Dactylaria higginsii as a bioherbicide for the control of purple nutsedge (Cyperus rotundus)
Section:Research
Other records with the "Research" Section
Source:Weed Technology. Vol. 14, No. 1, January-March 2000, p. 1-6.
Publishing Information:Champaign, IL: Weed Science Society of America.
# of Pages:6
Keywords:TIC Keywords: Dactylaria higginsii; Biological control; Cyperus rotundus; Conidia; Postemergence herbicides; Application rates; Dry weight; Shoots; Tubers; Disease severity; Growth
Geographic Terms:Florida
Abstract/Contents:"An isolate of the fungus Dactylaria higginsii obtained from purple nutsedge in Florida was highly pathogenic to Cyperus spp. The potential of this isolate as a bioherbicide was field tested in natural populations of purple nutsedge in Gainesville and Jay, FL. The fungus was applied in 0.5% MetamucilĀ® as a carrier, and the treatments were: carrier only, 10āµ conidia/ml + carrier, and 10ā¶ conidia/ml + carrier. Treatments were applied as single, double, or triple postemergence (POST) sprays at biweekly intervals. The disease and secondary infections developed in about 5 and 15 d after inoculation, respectively, killing most of the infected leaves. All weed growth parameters and disease progress rates were affected by inoculum dosage and inoculation frequencies. Three inoculations, each at 10ā¶ conidia/ml, provided effective control of purple nutsedge compared to a single inoculation, as measured by shoot dry weight, tuber numbers, and tuber dry weight. Higher rates of disease progress and disease levels, defined by the area under the disease progress curve (AUDPC), occurred with three inoculations at 10ā¶ conidia/ml. Disease progress was slower and the level of weed control was lower at 10āµ conidia/ml. compared to the higher inoculum level. Three applications of 10ā¶ conidia/ml provided > 90% nutsedge control. Dactylaria higginsii appears to be an effective bioherbicide candidate deserving further development for commercial use."
Language:English
References:32
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kadir, J. B., R. Charudattan, W. M. Stall, and B. J. Brecke. 2000. Field efficacy of Dactylaria higginsii as a bioherbicide for the control of purple nutsedge (Cyperus rotundus). Weed Technol. 14(1):p. 1-6.
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Web URL(s):
http://www.bioone.org/bioone/?request=get-document&issn=0890-037X&volume=014&issue=01&page=0001
    Last checked: 03/25/2016
    Access conditions: Item is within a limited access website
http://www.bioone.org/doi/pdf/10.1614/0890-037X%282000%29014%5B0001%3AFEODHA%5D2.0.CO%3B2
    Last checked: 03/25/2016
    Requires: PDF Reader
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MSU catalog number: SB 610 .W44
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