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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2001.91.6.S1#page=97
Last checked: 10/16/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Yandoc, C. B.;
Charudattan, R. |
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| Author Affiliation: | Plant Pathology Department, University of Florida, Gainesville |
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| Title: | Biological control of cogongrass (Imperata cylindrica) with fungal pathogens |
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| Meeting Info.: | 2001 APS/MSA/SON Joint Meeting, Salt Lake City, Utah: August 25-29, 2001 |
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| Source: | Phytopathology. Vol. 91, No. 6, June Supplement 2001, p. S97. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Biological control; Imperata cylindrica; Pathogens; Fungi; Drechslera gigantea; Bipolaris sacchari; Digitaria sanguinalis; Digitaria; Conidia; Weed control
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| Abstract/Contents: | "Eleven fungal isolates from weedy grasses collected in Florida were screened to select potential biocontrol agents for cogongrass. Two isolates that caused the highest levels of leaf lesions and leaf blight (30-50% disease severity (DS) based on James' key for southern corn leaf blight), Bipolaris sacchari and Drechslera gigantea, isolated from cogongrass and crabgrass (Digitaria sanguinalis), were chosen for further evaluation. Conidia of B. sacchari and D. gigantea were mass-produced on autoclaved rye grains. On average, 10 mg and 11.2 mg conidia per g of grains were produced by the two fungi. Conidia were viable for 10 mo when stored dry at 10°C and 30% relative humidity. Conidia applied in an oil emulsion (Sunspray 6E oil [4%] + mineral oil [10%]) caused higher DS than when applied in 1% gelatin. In field trials with different inoculum concentrations [105 vs 106 conidia/ml], oil emulsion concentrations [18% vs 26%], and application volumes [100 ml/0.25 m2 vs 200ml/0.25 m2], the interaction of the application volume and inoculum concentration influenced the level of control. Complete coverage of the foliage with the conidia-oil emulsion was key to achieving high levels of cogongrass control in the field." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Yandoc, C. B., and R. Charudattan. 2001. Biological control of cogongrass (Imperata cylindrica) with fungal pathogens. Phytopathology. 91(6):p. S97. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2001.91.6.S1#page=97
Last checked: 10/16/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 599 .P48 |
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