Full TGIF Record # 71215
Item 1 of 1
Publication Type:
Content Type:Abstract or Summary only
Author(s):Yelverton, F. H.; Gannon, T. W.; Hinton, J. D.
Author Affiliation:Yelverton: North Carolina State University
Title:Rainfastness of glyphosate formulations on tall fescue
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. 164.
Publishing Information:[Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
# of Pages:1
Keywords:TIC Keywords: Glyphosate; Vernolate + Dietholate; Festuca arundinacea; Herbicides; Herbicide application; Precipitation; Rainfastness
Trade Names:Roundup ProDry; Roundup Pro; Roundup; Reward
Abstract/Contents:"Roundup ProDry (RPD), Roundup Pro (RP), old formulation of Roundup (ROF), an experimental Roundup (EXR), and Roundup ProDry + Reward (R + R) were applied to tall fescue to evaluate rainfastness. Roundup formulations were applied at 6.7 kg acid equivalents/ha. No irrigation or irrigation was applied at 6.4 mm or 2.5 mm at 15, 30, or 60 minutes after herbicide applications (MAHA). At 1 week after treatment (WAT), control with RPD, RP, ROF, EXR, and R+R were 53, 58, 54, 51, and 81% respectively, for no rainfall, and 26, 31, 24, 35, and 71%, respectively, for 6.4 mm rainfall applied at 60 MAHA. No differences between 60, 30, or 15 MAHA were noted 1 WAT. At 4 WAT, control with RPD, RP, ROF, EXR, and R+R were 100, 100, 99, 99, and 90% control, respectively, for no rainfall, and 94, 97, 90, 97, and 86% control, respectively for 6.4 mm rainfall applied 60 MAHA, and 88, 88, 84, 91, and 84% control respectively for 6.4 mm rainfall 15 MAHA. Results were not different with 2.5 mm vs. 6.4 mm rainfall. These data indicate Roundup is more rainfast on tall fescue than the label suggests. Also, ROF performed similar to newer Roundup formulations. In general, rainfall decreased control more at 1 WAT than 4 WAT. R+R showed more rapid burndown at 1 WAT but antagonism at 4 WAT."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Yelverton, F. H., T. W. Gannon, and J. D. Hinton. 2000. Rainfastness of glyphosate formulations on tall fescue. Annu. Meet. Abstr. p. 164.
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