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| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2013/T003.pdf
Last checked: 11/14/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Report |
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| Author(s): | Koch, P. L.;
Kerns, J. P. |
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| Author Affiliation: | Department of Plant Pathology, University of Wisconsin, Madison, WI |
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| Title: | Preventative fungicide applications for the control of Pythium blight on perennial ryegrass, 2012 |
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| Section: | Turfgrass
Other records with the "Turfgrass" Section
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| Source: | PDMR: Plant Disease Management Reports. Vol. 7, 2013, p. T003. |
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| Publishing Information: | St. Paul, Minnesota: American Phytopathological Society |
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| # of Pages: | 1 |
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| Related Web URL: | http://www.plantmanagementnetwork.org/pub/trial/PDMR/volume7/abstracts/T003.asp
Last checked: 04/03/2013
Access conditions: Document is within a limited-access website
Notes: Summary only |
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| Keywords: | TIC Keywords: Acibenzolar-s-methyl + chlorothalonil; Application methods; Disease severity; Fungicide evaluation; Lolium perenne; Metalaxyl-M; Phytotoxicity; Pythium aphanidermatum; Secale cereale; Turfgrass quality
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| Trade Names: | Stellar; Daconil Action; Subdue MAXX |
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| Abstract/Contents: | "This evaluation was conducted at the O. J. Noer Turfgrass Research and Education Facility in Madison, WI on a juvenile stand of perennial ryegrass maintained at 1.5-in. Individual plots measured 3 ft by 5 ft and were arranged in a randomized complete block design with four replications. Individual treatments were applied at a nozzle pressure of 40 psi using a CO2 pressurized boom sprayer equipped with two Teejet AI8004 VS nozzles. All fungicides were agitated by hand and applied in the equivalent of 2 gallons of water per 1000 ft2. All treatments were applied once on 28 Aug, approximately two weeks following seeding of the perennial ryegrass stand. One day following fungicide application, individual plots were inoculated with Pythium aphanidermatum-infested rye (Secale cereale) grain, covered with a permeable cover, and irrigated twice daily to produce optimal Pythium blight conditions. Disease severity was visually assessed as percent area affected and turfgrass quality was rated on a 1-9 scale with 1 being bare soil, 6 being acceptable, and 9 being exceptional. Plots were assessed 2, 6, and 8 days post-inoculation. Data collected was subjected to an analysis of variance and means were separated using the Waller-Duncan test. Severity of Pythium blight was high during the trial, with non-treated controls averaging 80% disease one week following inoculation. Despite this intense pressure, all treatments reduced disease severity relative to the non-treated control with the exception of Daconil Action at the 1.6 fl oz per 1000 ft2 rate. Subdue MAXX, Stellar, Daconil Action + Subdue MAXX, and Subdue MAXX + Appear provided the most effective suppression of Pythium blight during the course of the trial. Turfgrass quality mirrored disease severity, and phytotoxicity was not observed following the application of any treatment." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is as abstract and tables only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Koch, P. L., and J. P. Kerns. 2013. Preventative fungicide applications for the control of Pythium blight on perennial ryegrass, 2012. PDMR: Plant Dis. Manage. Rep. 7:p. T003. |
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https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2013/T003.pdf
Last checked: 11/14/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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