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| Publication Type:
| Report |
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| Author(s): | Gelernter, Wendy;
Stowell, Larry J. |
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| Author Affiliation: | Editors, PTRI 1998 Turfgrass Research Report |
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| Title: | Evaluation of fungicides for control of summer patch caused by Magnaporthe poae on annual bluegrass greens |
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| Section: | Diseases and nematode management
Other records with the "Diseases and nematode management" Section
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| Source: | PTRI 1998 Turfgrass Research Report. 1998, p. 29-35. |
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| Publishing Information: | San Diego, CA: PACE Turfgrass Research Institute |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Fungicides; Summer patch; Magnaporthe poae; Poa pratensis; Application rates
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| Abstract/Contents: | "In a replicated field trial at Arrowhead Country Club, San Bernadino, CA, fungicides were evaluated for conrol of summer patch caused by Magnaporthe poae. Key results include: Monthly preventative treatments of Heritage provided excellent control of summer patch, at both 0.2 and 0.4 oz/1000 square feet, at application volumes of 1.9 or 3.7 gallons/1000 square feet, and applied alone or with the adjuvant Break-Thru. Heritage also performed suprisingly [surprisingly] well as a curative treatment, made in late July. Banner Maxx in general provided good to excellent control of summer patch. However, Banner Maxx applications at the high labeled rate (4.0 oz/1000) resulted in reversible phytotoxicity when applications were made in hot weather (>90° F). In addition, Banner Maxx did not appear to have the residual activity of Heritage. Based on these results, the best use of Banner Maxx may be at the 2.0 oz/1000 rate, utilized earlier in the season before high temperatures are common. The fungicides Eagle and Lynx provided good control of summer patch, but this control was statistically inferior to that provided by Heritage. Eagle performance was best when applications were initiated on a preventive basis (on 4/28/97), rather than on a curative basis (on 5/27/97). Eagle performed equally well when applied at 0.6 oz/1000 sq ft every 2 weeks, or 1.2 oz/1000 sq ft every 4 weeks. Cleary's 3336 provided control that was statistically superior to the check on most dates, but the control achieved was not commercially acceptable. By increasing application frequency from 14 days to 7 days, control with Cleary's 3336 would be expected to improve." |
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| Language: | English |
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| References: | 0 |
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| See Also: | See also related article "Evaluation of fungicides for control of summer patch caused by magnaporthe poae on annual bluegrass greens" Super Journal: PACE Turfgrass Research Institute, 1997, p. 1-7 R=170282 R=170282 |
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| Note: | Cooperator: John Harkness, Arrowhead Country Club
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gelernter, W., and L. J. Stowell. 1998. Evaluation of fungicides for control of summer patch caused by Magnaporthe poae on annual bluegrass greens. Turfgrass Res. Rep. p. 29-35. |
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MSU catalog number: SB 433 .P87 |
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