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Publication Type: | Report |
Content Type: | Abstract or Summary only |
Author(s): | Dimarco, J. N.; Clarke, B. B.; Murphy, J. A. |
Author Affiliation: | Rutgers University |
Title: | Management of dollar spot using improved bentgrass cultivars and selected cultural and chemical regimes |
Section: | Turfgrass science Other records with the "Turfgrass science" Section |
Meeting Info.: | Minneapolis, MN: November 5-9, 2000 |
Source: | 2000 Annual Meeting Abstracts [ASA/CSSA/SSSA]. 2000, p. 158. |
Publishing Information: | [Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America |
# of Pages: | 1 |
Keywords: | TIC Keywords: Agrostis stolonifera; Disease susceptibility; Nitrogen fertility; Nitrogen; Nitrogen fertilization; Mowing height; Disease control; Cultural control; Chemical control; Chlorothalonil; Disease severity; Fungicide application; Dollar spot; Sclerotinia homoeocarpa; Brown patch; Rhizoctonia solani; Copper spot; Gloeocercospora sorghi; Quality; Color; Density |
Cultivar Names: | L-73; Crenshaw; Southshore; Penncross; Penn A-4; Penn G-2; L-93; SR 7200; SR 1020 |
Abstract/Contents: | "The disease susceptibility of several bentgrass cultivars (CVS) maintained under different nitrogen fertility, mowing height, and fungicide regimes was assessed to identify factors that can be used to reduce fungicide inputs while maintaining acceptable turf quality. Eight bentgrass CVS (Crenshaw, Southshore, Penncross, L-93, SR 1020, SR 7200, Penn A-4 and Penn G-2) were evaluated under field conditions. All CVS were maintained at two cutting heights: 0.356 cm (greens height) and 0.953 cm (fairway height), and two nitrogen levels: 0.012 kg/sq m and 0.031 kg/sq m. CV treatments were subdivided into six fungicide application schedules (untreated, 7, 14, 28, or 56 day intervals, or an economic threshold of 0.3% disease) using the contact fungicide chlorothalonil. Data were collected for turf quality, color, density, and dollar spot (Sclerotinia homoeocarpa) severity. Other foliar diseases, e.g. brown patch (Rhizoctonia solani) and copper spot (Gloeocercospora sorghi) were also evaluated. For most CVS, dollar spot was least severe on turf receiving the high rate of nitrogen. CVS Penn G2, SR 7200 and L-93 were less susceptible to dollar spot under most nitrogen and cutting height treatments. Brown patch was most severe on turf maintained at greens height and high nitrogen, while a high incidence of copper spot was only seen on SR 7200." |
Language: | English |
References: | 0 |
See Also: | Other items relating to: NEWBENTS |
Note: | This item is an abstract only! |
ASA/CSSA/SSSA Citation (Crop Science-like – may be incomplete): | Dimarco, J. N., B. B. Clarke, and J. A. Murphy. 2000. Management of dollar spot using improved bentgrass cultivars and selected cultural and chemical regimes. Annu. Meet. Abstr. p. 158. |
Fastlink to access this record outside TGIF: | http://tic.msu.edu/tgif/flink/RECNO/70990 |
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MSU catalog number: | S 1 .A58 |
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