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| Publication Type:
| Report |
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| Author(s): | Hartman, J. R.;
Clinton, W.;
Powell, A. J. |
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| Author Affiliation: | Departments of Plant Pathology and Agronomy, University of Kentucky |
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| Title: | Control of Summer Patch and Necrotic Ring Spot of Kentucky Bluegrass, 1987 |
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| Source: | Fungicide and Nematicide Tests. Vol. 43, 1988, p. 270. |
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| Publishing Information: | St. Paul: American Phytopathological Society |
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| Keywords: | TIC Keywords: Poa pratensis; Summer patch; Necrotic ring spot; Fungicides; Ophiosphaerella korrae; Magnaporthe poae
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| Abstract/Contents: | "Fungicide treatments were evaluated for summer patch and necrotic ring spot prevention on a Kentucky bluegrass fairway located at Griffin Gate golf course near Lexington. The turfgrass was maintained at a 0.75 in. mowing height (gradually lowered 0.5 in during Aug), received 2.0 lb of nitrogen annually, was irrigated as needed and otherwise received conventional fairway maintenance. Each treatment was replicated four times in a randomized complete block design with 12 x 20 ft plots. Treatments were applied using a hand pumped Solo backpack sprayer with a 6 ft, four nozzle boom delivering 2 gal/1000 sq ft and operating at 25 psi. Applications were made at monthly intervals on 18 May, 15 Jun, 16 Jul, and 19 Aug. The treatments were made on 2 or 3 of the dates indicated. Plots were evaluated by counting the number of patch disease infection centers on 30 Jul and 31 Aug, and by estimating the percentage of turf area affected on 31 Aug. Patch disease symptoms (both necrotic ring spot and summer patch had been found in this area before) first appeared in mid-July, as in previous. The two diseases were evaluated as one; however, given the relative success of Bayleton treatments, summer patch was most likely the predominant disease. Patch disease development, erratic at first, was severe by the end of Aug. The growing season was generally hot and dry. No treatment satisfactorily controlled the disease; however, all Banner, Bayleton, and the SN 596 treatments provided significant control of this patch disease when compared to untreated plots." |
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| Language: | English |
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| References: | 0 |
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| See Also: | Other items relating to: SUMPAT |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hartman, J. R., W. Clinton, and A. J. Powell. 1988. Control of Summer Patch and Necrotic Ring Spot of Kentucky Bluegrass, 1987. Fungicide Nematicide Tests. 43:p. 270. |
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MSU catalog number: SB 951.3 .F82 |
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