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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2006 Proceedings-SWSS.pdf#page=180
Last checked: 07/18/2013
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.;
McElroy, J. S. |
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| Author Affiliation: | University of Tennessee |
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| Title: | Control of various broadleaf weeds in turf with mesotrione |
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| Section: | Weed management in turf grass
Other records with the "Weed management in turf grass" Section
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| Meeting Info.: | San Antonio, Texas: January 23-25, 2006 |
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| Source: | Proceedings: Southern Weed Science Society 59th Annual Meeting. Vol. 59, 2006, p. 107. |
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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: Broadleaf weed control; Herbicide application; Herbicide efficacy; Herbicide evaluation; Mesotrione
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| Abstract/Contents: | "Some broadleaf weeds are more difficult to control than others. Often multiple applications are needed to control some of the more difficult to control broadleaves. Mesotrione is a new herbicide that is currently being adapted to the turfgrass market. Mesotrione has activity on both grasses and broadleaf weeds. As this herbicide is being adapted data is needed for rate, timing, and multiple applications for both weed control and turf tolerance. Field research was initiated in 2005 to evaluate postemergence applications of mesotrione for broadleaf weed control. Research was conducted in Rockford and Oak Ridge, TN in 2005. Treatments were arranged using a randomized complete block design with 4 replications. Herbicides were applied with a CO2 pressurized sprayer and a 4 ft. boom with a pressure of 26 PSI and 11002XR flat fan nozzles. Single postemergence applications included were mesotrione at 0.187 and 0.25 lb ai/a, and Trimec Classic (25.93% 2,4-D + 6.93% MCPP + 2.76% dicamba) at 1.19 lb ai/a. Sequential applications were mesotrione at 0.125 and 0.187 lb ai/a, and Trimec Classic at 0.595 lb ai/a. The second application was applied 3-4 weeks after the initial application.. All mesotrione treatments contained 0.25 % v/v NIS. Experimental units were 5 ft. by 10ft. Weed control and turf injury were evaluated visually utilizing a 0% (no weed control or turf injury) to 100% (complete weed control or turf injury) scale. Less than 10% tall fescue (Festuca arundinacea) injury was observed at anytime by any herbicide treatment at Rockford. Single applications of mesotrione at 0.187 and 0.25 lb ai/a provided unacceptable control (<50%) of both white clover (Trifolium repens) and ground ivy (Glechoma hederacea) at 3 weeks after the sequential (WAS) application. Sequential applications of mesotrione at 0.125 lb ai/a controlled white clover 75% at 3 WAS. Trimec Classic at 1.19 lb ai/a in a single application, Trimec Classic applied sequentially at 0.595 lb ai/a, and mesotrione applied sequentially at 0.187 lb ai/a controlled white clover >90 % at 3 WAS. Trimec Classic at 1.19 lb ai/a in a single application, Trimec Classic applied sequentially at 0.595 lb ai/a, and mesotrione applied sequentially at 0.125 and 0.187 lb ai/a controlled ground ivy >90 % at 3 WAS. Mesotrione injury (<40 %) to bermudagrass (Cynodon dactylon) was observed at Oak Ridge during the trial, however bermudagrass was able to recover quickly. A single application of mesotrione at 0.187 provided unacceptable control (<60 %) of both white clover and dandelion (Taraxacum officinale) at 3 WAS. Mesotrione in a single application at 0.25 lb ai/a provided < 78% control of both white clover and dandelion at 3 WAS. Sequential applications of mesotrione at 0.125 lb ai/a controlled white clover 84% at 3 WAS. Trimec Classic at 1.19 lb ai/a in a single application, Trimec Classic at 0.595 lb ai/a applied sequentially, and mesotrione at 0.187 lb ai/a applied sequentially controlled white clover >95 % at 3 WAS. A single application of Trimec Classic at 1.19 lb ai/a, Trimec Classic at 0.595 lb ai/a applied sequentially, and mesotrione at 0.125 and 0.187 lb ai/a applied sequentially provided excellent control (100 %) of dandelion at 3 WAS. Sequential applications of mesotrione provided better control of white clover, dandelion, and ground ivy than single applications. Ground ivy and dandelion control with sequential applications of mesotrione was equal to applications of Trimec Classic." |
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| Language: | English |
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| References: | 0 |
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| Note: | "Vision for the future"
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Breeden, G. K., and J. S. McElroy. 2006. Control of various broadleaf weeds in turf with mesotrione. South. Weed Sci. Soc. Proc. 59:p. 107. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2006 Proceedings-SWSS.pdf#page=180
Last checked: 07/18/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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