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| Web URL(s): | http://a-c-s.confex.com/crops/2010am/webprogram/Paper59770.html
Last checked: 10/19/2010
Notes: Abstract only |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Zhang, Qi;
Blume, Christopher;
Bryan, Jeffrey;
Christians, Nick;
Diesburg, Kenneth;
Frank, Kevin;
Fry, Jack;
Gardner, David;
Kennelly, Megan;
Martin, Dennis;
Rincker, Keith;
Settle, Derek;
Soldat, Douglas;
Stier, John;
Thompson, Cole |
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| Author Affiliation: | Zhang: North Dakota State University, Fargo, ND; Blume and Christians: Iowa State University, Ames, IA; Bryan and Frank: Michigan State University, East Lansing, MI; Diesburg: Southern Illinois University, Carbondale, IL; Fry, Kennelly and Thompson: Kansas State University, Manhattan, KS; Gardner: The Ohio State University, Columbus, OH; Martin: Oklahoma State University, Stillwater, OK; Rincher: Chicago District Golf Association, Cerro Gordo, IL; Settle: Lemont, IL; Soldat: University of Wisconsin-Madison; Stier: University of Wisconsin, Madison, WI |
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| Title: | Multi-State evaluation of dollar spot susceptibility in creeping bentgrass |
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| Section: | Turfgrass pest management
Other records with the "Turfgrass pest management" Section
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| Meeting Info.: | Long Beach, CA: October 31 - November 4, 2010 |
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| Source: | 2010 International Annual Meetings: [Abstracts][ASA-CSSA-SSSA]. 2010, p. 59770. |
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| Publishing Information: | [Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Disease resistance; Disease severity; Dollar spot; Fungicide application; Golf fairways; Golf greens; Sclerotinia homoeocarpa
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| Abstract/Contents: | "Dollar spot (Sclerotinia homoeocarpa) is a common disease on creeping bentgrass (Agrostis stolonifera) putting greens and fairways, and is typically treated using calendar-based preventative fungicides. This may lead to applications of more fungicide than necessary, causing environmental and economic concerns. The objectives of this research were to: 1) evaluate dollar spot susceptibility in commonly used commercial creeping bentgrass cultivars; 2) study environmental influences on dollar spot occurrence and severity; and 3) evaluate the suitability of a threshold-based fungicide application schedule for dollar spot control on a disease-resistant cultivar. The experiment was initiated in 2008 in nine states as a split-block design with three replicates. The whole-plot treatments were bentgrass cultivars and the sub-block treatments were two fungicide application regimes [ (no fungicide vs. a combination of boscalid and chlorothalonil applied when dollar spot was ā„ 5% or 10% under putting green and fairway condition, respectively, in two of the three replicates in 'Declaration' (a S. Homoeocarpa resistant cultivar)]. Dollar spot was observed in KS, IA, MI, WI, and IL in 2009. However, fungicide treatments were applied only in KS and IA due to the low disease pressure in other locations. The preliminary results showed that turfgrass quality and dollar spot occurrence and severity were affected by environmental conditions. 'Crenshaw' and 'Declaration' were the least and the most tolerant to dollar spot, respectively. Fungicide applications reduced dollar spot up to 36%. Variations in bentgrass quality were mostly due to the differences of disease sensitivity during summer." |
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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):
Zhang, Q., C. Blume, J. Bryan, N. Christians, K. Diesburg, K. Frank, et al. 2010. Multi-State evaluation of dollar spot susceptibility in creeping bentgrass. Int. Ann. Meet. p. 59770. |
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| Web URL(s):
http://a-c-s.confex.com/crops/2010am/webprogram/Paper59770.html
Last checked: 10/19/2010
Notes: Abstract only |
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