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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Mercier, J.;
Stienstra, W. C.;
Krupa, S. V. |
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| Author Affiliation: | Department of Plant Pathology, University of Minnesota, St. Paul, Minnesota |
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| Title: | Reduction in dollar spot of turf associated with applications of the growth regulator paclobutrazol |
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| Meeting Info.: | APS/ESA Joint Annual Meeting, November 8-12, 1998, Las Vegas, Nevada |
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| Source: | Phytopathology. Vol. 88, No. 9, September Supplement 1998, p. S62. |
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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: Dollar spot; Growth regulators; Paclobutrazol; Agrostis stolonifera; Poa annua; Disease control; Chlorothalonil; Trinexapac-ethyl
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| Abstract/Contents: | "The effect of paclobutrazol on dollar spot was tested on a creeping bentgrass/annual bluegrass turf in Minnesota. The growth regulator was applied every 3 weeks, staggered by about 10 days with fungicide treatments (chlorothalonil or propiconazole), also applied every 3 weeks. Paclobutrazol alone significantly reduced (P < 0.05) the number of dollar spot infection centers by 75% to 97% at times of low disease incidence, about 45 infections per m2 in untreated plots. Under high disease pressure (more than 200 infections per m2 in untreated plots), disease control by paclobutrazol alone (44%) was not sufficient and turf quality declined. However, under these conditions, paclobutrazol improved the control obtained with low rates of chlorothalonil treatments by up to 68%. No reduction in dollar spot resulted from applications of the growth regulator trinexapac-ethyl." |
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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):
Mercier, J., W. C. Steinstra, and S. V. Krupa. 1998. Reduction in dollar spot of turf associated with applications of the growth regulator paclobutrazol. Phytopathology. 88(9):p. S62. |
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