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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2006 Proceedings-SWSS.pdf#page=175
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): | Willis, J. B.;
Ricker, D. B.;
Askew, S. D. |
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| Author Affiliation: | Virgina Tech, Blacksburg, VA |
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| Title: | ALS herbicides for seeded bermudagrass establishment |
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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. 102. |
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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: Acetolactate synthase-inhibiting herbicides; Cynodon dactylon; Establishment; Herbicide efficacy; Herbicide evaluation; Seed propagated bermudagrasses
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| Abstract/Contents: | "As seeded bermudagrass (SB) (Cynodon dactylon varieties continue to perform well in variety trials, more fine turf managers are considering SB for fairways and athletic fields. Riviera SB has cold-toler ance, wear-tolerance, color, and quality characteristics equivalent to popular vegetative varieties. SB popularity has created need for weed control options during establishment. Acetolactate synthase (ALS) inhibiting herbicides have been labeled for use on established bermudagrass. However, these herbicides have not been applied to seedling bermudagrass, before uniform stolon development. ALS herbicides would prove useful for weed control during SB establishment if safe to young SB. The objective of these studies where to evaluate ALS herbicides applied 1 and 3 weeks after seeding (WAS) SB safety and smooth crabgrass (Digitaria ischaemum) control. Three trials were conducted in Blacksburg, VA at the Virginia Tech Golf Course. Before trial initiation, existing Kentucky bluegrass (Poa pratensis) fairway was controlled with multiple applications of glyphosate. Trial areas were then core-aerated and vertically mown each in two di rections and Riviera SB was so wn at 43.56 lb/A pure live seed. Trials were seeded June 7, 2004, May 20, 2005, an d June 15, 2005 for trial 1, 2, and 3, respectively. Treatments were arranged in a 2 by 6 factorial with one nontreated comparison. The 2 application timings were 1 and 3 weeks after seeding (WAS) and 6 herbicides are flazasulfuron (0.50 oz ai/A), foramsulfuron (0.5 0 oz ai/A), metsulfuron (0.50 oz ai/A), rimsulfuron (0.50 oz ai/A), sulfosulfuron (0.50 oz ai/A), and trifloxysulfuron (0.42 oz ai/A). Experimental design was randomized complete block with 4 replications. Plot size was 6 by 9 ft and experiments were maintained as fairway with cutting height of 3/4 inch. Turf cover, injury, and smooth crabgrass control ratings were visually estimated at 6 and 9 WAS. Nontreated treatment was deleted from analysis to stabilize variance, appropriate main effects and interactions were separated using SAS procedure GLM, alpha = 0.05. Trial and application effects were not significant and were pooled. Trifloxy sulfuron and flazasulfuron caused more injury than all other herbicides and significantly reduced turf cover 9 WAS. Rimsulfuron caused unacceptable SB injury 6 WAS but injury subsided by 9 WAS. Likewise, percent cover was significantly reduced from rimsulfuron applications 6 WAS, however, SB recovered from injury and cover was not significantly lower than other treatments. Sulfosulfuron and metsulfuron caused moderate injury 6 WAS, which did not significantly reduce turf cover at 6 or 9 WAS. Foramsulfuron was among the safest herbicides having low levels of injury and high cover ratings relative to other treatments. Overall injury in the form of chlorosis can be tolerated as long as no reduction of SB cover is sustained. Flazasulfuron and trifloxysulfuron controlled smooth crabgrass greater than 90%. Metsulfuron and rimsulfuron suppressed smooth crabgrass allowing for better SB establishment despite injury from these products. In conclusion foramsulfuron and sulfosul furon are safe to apply 1 and 3 WAS, causing very little chlorosis and no reduction in turf cover. Flazasulfuron, metsulfuron, rimsulfuron, and trifloxy sulfuron are not safe to use 1 and 3 WAS due to significant injury and reduction in cover. Flazasul furon, metsulfuron, rimsulfuron, and trifloxysulfuron significantly controlled smooth crabgrass, however injured bermudagrass and reduced cover when applied 1and 3 WAS." |
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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):
Willis, J. B., D. B. Ricker, and S. D. Askew. 2006. ALS herbicides for seeded bermudagrass establishment. South. Weed Sci. Soc. Proc. 59:p. 102. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2006 Proceedings-SWSS.pdf#page=175
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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