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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2010.pdf#page=84
Last checked: 07/22/2013
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Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Hart, S.;
McCullough, P.;
Mansue, C.;
Reicher, Z. |
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| Author Affiliation: | Rutgers University, New Brunswick, NJ |
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| Title: | Seasonal timing and temperature effects on the efficacy and cool season turfgrass safety of amicarbazone |
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| Meeting Info.: | Cambridge, MA: January 4-7, 2010 |
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| Source: | Proceedings: 64th Annual Meeting of the NortheasternWeed Science Society. Vol. 64, 2010, p. 68. |
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| Publishing Information: | Ithaca, NY: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Amicarbazone; Application timing; Cool season turfgrasses; Herbicide efficacy; Herbicide safety
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| Abstract/Contents: | "Amicarbazone has potential for selective annual bluegrass control in cool-season turfgrasses but seasonal application timings may influence efficacy. To test this hypothesis, field experiments were initiated in New Jersey and Indiana from 2007 to 2008. In New Jersey, treatments were the factorial combination of five amicarbazone rates applied twice (0.1, 0.2, 0.3, 0.4, and 0.5 kg a.i./ha) and two application timings (fall or spring). Primisulfuron and bispyribac-sodium were included for standard comparisons. Treatments to Kentucky bluegrass were made on October 16 and November 7, 2007 for fall treatments and April 16 and May 7, 2008 for spring treatments. Treatments to creeping bentgrass were made on October 17 and November 8, 2007 for fall treatments and April 17 and May 6, 2008 for spring treatments. In Indiana, treatments included sequential applications of three amicarbazone rates (0.1, 0.2, or 0.3 kg/ha) and bispyribac-sodium applied in fall or spring. Fall treatments were applied on October 23 and November 14 while spring treatments were applied on May 14 and June 4. In New Jersey, sequential applications from 0.2 to 0.5 kg/ha caused 21 to 81% injury to Kentucky bluegrass by eight WAIT, while in Indiana, injury ranged from 56 to 86% by six WAIT. Spring treatments of amicarbazone from 0.1 to 0.3 kg/ha at both locations injured Kentucky bluegrass less than 20%. Amicarbazone from 0.1 to 0.3 kg/ha at both locations injured Kentucky bluegrass 10 to 18% and 18 to 30% by two and four WAIT, respectively but injury declined to 3 and 24% by 8 WAIT. In New Jersey, creeping bentgrass injury from sequential fall applications of amicarbazone at 0.1 and 0.2 kg/ha was 13% or less at four and eight WAIT, while applications at 0.3, 0.4, and 0.5 kg/ha injured creeping bentgrass 8, 11, and 28% by four WAIT, respectively, and injury increased to 31, 40, and 64% by eight WAIT, respectively. In Indiana, fall applications of amicarbazone of amicarbazone from 0.1 to 0.3 kg/ha injured creeping bentgrass from 19 to 37% and 44 to 78% by four and six WAIT, respectively. In New Jersey, spring treatments of amicarbazone at 0.1 to 0.4 kg/ha injured creeping bentgrass by 12% or less but amicarbazone at 0.5 kg/ha injured creeping bentgrass 37 and 23% by four and wight WAIT, respectively. In Indiana, sequential spring amicarbazone applications from 0.1 to 0.3 kg/ha injured creeping bentgrass less than 12% by four and six WAIT. In New Jersey, all fall treatments of amicarbazone controlled annual bluegrass similarly ranging from 88 to 100% while primisulfuron provided only 57% control. Annual bluegrass control with spring treatments was less, averaging only 68% In Indiana, fall applications of amicarbazone at 0.1, 0.2, and 0.3 kg/ha controlled annual bluegrass 23, 78, and 85%, respectively, while bispyribac-sodium controlled annual bluegrass by 29%. Spring applications of amicarbazone at 0.1, 0.2, and 0.3 kg/ha controlled annual bluegrass 23, 37, and 74%, respectively, while bispyribac-sodium provided 75% control. Fall treatments were more injurious to creeping bentgrass and Kentucky bluegrass and efficacious on annual bluegrass. Growth chamber experiments confirmed injury and clipping reductions were exacerbated by increased temperatures (10-30C) on all grasses suggesting application timing and temperature influence amicarbazone" |
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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):
Hart, S., P. McCullough, C. Mansue, and Z. Reicher. 2010. Seasonal timing and temperature effects on the efficacy and cool season turfgrass safety of amicarbazone. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 64:p. 68. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2010.pdf#page=84
Last checked: 07/22/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 610 .N62 v. 60 |
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