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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2008 Proceedings-SWSS.pdf#page=85
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Jester, J. L.;
Askew, S. D. |
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| Author Affiliation: | Virginia Tech, Blacksburg, VA |
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| Title: | Herbicide effects on native grass establishment |
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| Section: | Weed management in turf
Other records with the "Weed management in turf" Section
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| Meeting Info.: | Jacksonville, Florida: January 27-30, 2008 |
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| Source: | 2008 Proceedings, Southern Weed Science Society. Vol. 61, 2008, p. 127. |
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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: Bouteloua gracilis; Herbicide evaluation; Native grasses; Non-target effects; Schizachyrium scoparium
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| Abstract/Contents: | "The addition of adaptable perennial grasses typically referred to as "native species" to golf courses is a relatively new practice. Unlike conservation efforts, golf courses must establish cover quickly for aesthetics and weed control. Utilizing methods such as increased seeding rates and scheduled watering can expedite the maturation of the stand but weeds still pose a constant problem. Herbicide usage is critical to promote development of slow-maturing perennial grasses by reducing weed competition. The selection of an herbicide depends on its effectiveness and level of tolerance by the grass species. Evaluating the effects of commonly used herbicides on blue grama grass (Bouteloua gracilis) and little bluestem grass (Schizachyrium scoparium) can provide data necessary to make herbicide selection easier while protecting the developing stand. Our objectives were to evaluate 25 herbicides or herbicide combinations for effects on blue grama grass and little bluestem. Little bluestem and blue grama grass were seeded in rows on June 22, 2007 in Blacksburg, VA as part of an endeavor to transition managed turf to an unmanaged meadow. Initial plant densities ranged from 1 to 78 blue grama plants and 18 to 103 little bluestem plants per plot. The study was established as a randomized complete block design with 3 replications and 26 treatments. Little bluestem and blue grama grass had a minimum of three leaves at time of application. Herbicides included in this study are: Amicarbazone; aminopyralid; bentazon; carfentrazone; carfentrazone + 2,4-D + MCPP + dicamba; chlorsulfuron; 2,4-D + MCPP + dicamba; fenoxaprop; flazasulfuron; fluazifop; flucarbazone; foramsulfuron; halosulfuron; imazapic; mesotrione; metsulfuron; nicosulfuron; primisulfuron; quinclorac; simazine; sulfentrazone; sulfosulfuron; tembotrione; topramezone; and trifloxysulfuron. All herbicides were applied with appropriate adjuvant and at label-recommended rates for crops on which the products are registered. Blue grama grass and little bluestem levels of phytotoxicity were assessed weekly for 6 week by visually estimating plant discoloration and stunting compared to the non-treated control. Plant counts were taken at the initiation of the trial and final week, change in stand density per herbicide treatment was then calculated. Little bluestem was not significantly injured by the following: Aminopyralid; bentazon; carfentrazone; carfentrazone + 2,4-D + MCPP + dicamba; chlorsulfuron; 2,4-D + MCPP + dicamba; fenoxaprop; flazasulfuron; foramsulfuron; halosulfuron; mesotrione; metsulfuron; nicosulfuron; primisulfuron; quinclorac; simazine; sulfentrazone; sulfosulfuron; tembotrione. Amicarbazone; fluazifop; flucarbazone; imazapic; trifloxysulfuron and topramezone induced the greatest loss in plant counts for little bluestem. Trifloxysulfuron had the greatest phytotoxic injury in little bluestem of 37.5% at 4 WAT. Blue grama grass was not injured by the following herbicides: Bentazon; carfentrazone; carfentrazone; 2, 4-D + MCPP + dicamba; fluazifop; flucarbazone; halosulfuron, metsulfuron; and sufentratzone. Topramezone; imazapic; nicosulfuron; foramsulfuron; and tembotrione induced the greatest loss in plant counts and the highest rates of phytotoxicity in blue grama. Tembotrione induced phytotoxic rates of 90% or greater at 4, 5, and 6 WAT. All other herbicides caused tolerable levels of phytotoxic injury to blue grama grass. These data indicate that several herbicides are safe to use on these adaptable perennial grasses." |
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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):
Jester, J. L., and S. D. Askew. 2008. Herbicide effects on native grass establishment. South. Weed Sci. Soc. Proc. 61:p. 127. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2008 Proceedings-SWSS.pdf#page=85
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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