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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2003%20Proceedings-SWSS.pdf#page=164
Last checked: 07/15/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Breeden, G. K.;
Sliger, R. L.;
Rhodes, G. N. Jr. |
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| Author Affiliation: | University of Tennessee |
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| Title: | Evaluation of Grazon P+D and Redeem R&P for weed control in cool season grasses |
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| Section: | Weed management in turf, pasture, and rangeland
Other records with the "Weed management in turf, pasture, and rangeland" Section
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| Meeting Info.: | Houston, Texas: January 27-29, 2003 |
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| Source: | Proceedings: Southern Weed Science Society: 56th Annual Meeting. Vol. 56, 2003, p. 78. |
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| Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: 2,4-D + Picloram; Cool season turfgrasses; Herbicide efficacy; Herbicide evaluation; Phytotoxicity; Weed control
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| Trade Names: | Grazon P+D; Redeem R&P |
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| Abstract/Contents: | "Weed control is important to pasture and hay production. However, application of 2,4-D and similar herbicides create concerns for drift to sensitive crops. Cotton, tobacco and tomatoes are important crops in many Tennessee counties. All of these are sensitive to many pasture herbicides. These crops also are not in field production in the fall to winter months. This can offer an opportunity for control of many troublesome weeds with fall to early winter applications. Field research was initiated in fall 2001, at Sweet water, TN on natural infestations of buckhorn plantain (Plantago lanceolata), Carolina geranium (Geranium carolinianum) and corn gromwell (Lithospermum arvense) in an established tall fescue (Festuca arundinacea) and orchardgrass (Dactylis glomerata) mixture. Treatments included in the research were Redeem R&P (1, 1.5 and 2 pt/A); 2,4-D ester (2 and 4 pt/A); Banvel (1 and 2 pt/A); Weedmaster (2 pt/A); and Grazon P+D (1.5, 2 and 3 pt/A). Experimental units were 10 ft. wide by 30 ft. long. Treatments were replicated 4 times in a randomized complete block design. Herbicides were applied in a water carrier volume of 15 GPA with a CO2 pressurized sprayer mounted on a 4-wheeler. Weed control and crop injury were evaluated visually utilizing a 0 to 99% scale. At 7, 12 and 20 weeks after treatment (WAT) no injury to either tall fescue or orchardgrass was observed. All treatments provided good (86% or greater) control of Carolina geranium at 7 WAT with the exception of Redeem R&P (1.5 pt/A). Redeem R&P (2 pt/A), 2,4-D ester (2 and 4 pt/A), Weedmaster (2 pt/A) and Grazon P+D (1.5, 2 and 3 pt/A) provided excellent (88% or greater) control at both 12 and 20 WAT of Carolina geranium. All treatments provided good (86% or greater) control of corn gromwell at 7 WAT. Redeem R&P (1 and 2 pt/A), 2,4-D ester (2 and 4 pt/A), Banvel (1 pt/A), Weedmaster (2 pt/A) and Grazon P+D (1.5, 2 and 3 pt/A) provided good (85% or greater) control at both 12 and 20 WAT of corn gromwell. All treatments provided excellent (89% or greater) control of buckhorn plantain at 7 WAT with the exception of Redeem R&P (1 pt/A), 2,4-D ester (2 pt/A) and Banvel (1 and 2 pt/A). Banvel (1 and 2 pt/A) were the only two treatments that did not provide excellent (89% or greater) control of buckhorn plantain at 12 WAT. At 20 WAT all treatments provided excellent (92% or greater) control of buckhorn plantain with the exception of 2,4-D ester (2 pt/A) and Banvel (1 and 2 pt/A). Grazon P+D provided excellent control of all weed species at all application rates. A 2 pt/A rate of Redeem R&P is required for adequate control of Carolina geranium and corn gromwell. Redeem R&P provided excellent control of buckhorn plantain at 1.5 or 2 pt/A. Grazon P+D and Redeem R&P are good options for weed control in cool season grasses. Fall applications are useful in Tennessee for weed control in pastures and hay fields. During some years however, weather can be a factor in proper application timing." |
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| Language: | English |
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| References: | 0 |
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| Note: | "Invasive weeds: Real or imagined threat?"
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Breeden, G. K., R. L. Sliger, and G. N. Jr. Rhodes. 2003. Evaluation of Grazon P+D and Redeem R&P for weed control in cool season grasses. South. Weed Sci. Soc. Proc. 56:p. 78. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2003%20Proceedings-SWSS.pdf#page=164
Last checked: 07/15/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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Digitally in TIC by file name: swssp2003 |
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