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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2005 Proceedings-SWSS.pdf#page=196
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): | Henry, G. M.;
Yelverton, F. H. |
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| Author Affiliation: | North Carolina State University, Raleigh, NC |
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| Title: | Dallisgrass control in bermudagrass turf with foramsulfuron |
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| Section: | Weed management in turfgrass
Other records with the "Weed management in turfgrass" Section
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| Meeting Info.: | Charlotte, North Carolina: January 24-26, 2005 |
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| Source: | Proceedings of the 58th Annual Meeting of the Southern Weed Science Society. Vol. 58, 2005, p. 121. |
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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: Comparisons; Cynodon dactylon; Dallisgrass control; Foramsulfuron; Herbicide efficacy; Herbicide evaluation; Paspalum dilatatum
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| Trade Names: | Revolver |
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| Abstract/Contents: | "Currently, chemical control of dallisgrass (Paspalum dilatatum Poir.) is neither efficient, nor cost effective. Typical programs include multiple applications of MSMA, which can be phytotoxic to warm-season turfgrass, or applications of glyphosate, which can be even more harmful to bermudagrass (Cynodon dactylon [L.] Pers.). Furthermore, these control methods are not entirely effective in eliminating dallisgrass from turf. Revolverā¢, which contains the sulfonylurea active ingredient foramsulfuron, was recently introduced. Although Revolver is labelled for the control of certain weeds in warm-season grasses, preliminary studies suggest that Revolver might help control dallisgrass in bermudagrass turf. Therefore, Field experiments were conducted at Hidden Valley Golf Club located in Fuquay Varina, NC, and Garner Country Club located in Raleigh, NC in the summer of 2004 to quantify the efficacy of several herbicides (including foramsulfuron) and herbicide programs to control dallisgrass present in bermudagrass rough. Studies were located on established infestations of dallisgrass present in a common bermudagrass rough cut to a height of 5.0 cm. Plots measured 1.2 m x 3.0 m and were arranged in a randomized complete block design, with four replications of treatments. Treatments were applied using a CO2 backpack sprayer equipped with XR8004VS nozzle tips and calibrated to deliver 304 L/ha at 220 kPa. Treatments were initiated on June 10 and consisted of MSMA (2.5 kg ai/ha) followed by (fb) foramsulfuron (45, 90, 108, or 145 g ai/ha) 1 week after initial treatment (WAIT), MSMA (2.5 kg ai/ha) fb foramsulfuron (45, 90, 108, or 145 g ai/ha) 2 WAIT, MSMA (2.5 kg ai/ha) fb foramsulfuron (45, 90, 108, or 145 g ai/ha) 2 WAIT fb MSMA (2.5 kg ai/ha) 3 WAIT, MSMA (2.5 kg ai/ha) fb MSMA (2.5 kg ai/ha) 1WAIT, MSMA (2.5 kg ai/ha) fb MSMA (2.5 kg ai/ha) 1 WAIT fb MSMA (2.5 kg ai/ha) 2 WAIT, 2 applications of foramsulfuron (45, 90, 108, or 145 g ai/ha) applied one week apart, foramsulfuron (108 g ai/ha) fb MSMA (1.25 kg ai/ha) 1 WAIT, MSMA (1.25 kg ai/ha) fb foramsulfuron (108 g ai/ha) 1 WAIT, metribuzin (0.4 kg ai/ha) fb foramsulfuron (108 g ai/ha) 1WAIT, MSMA (1.25 kg ai/ha) fb MSMA (1.25 kg ai/ha) 1WAIT, and a non-treated check. Initial percent dallisgrass infestation was recorded for each plot prior to the initiation of the experiment. Visual estimates of percent dallisgrass control and bermudagrass phytotoxicity were taken 1, 2, 4, 6, 8, and 12 WAIT. Data were subjected to analysis of variance (ANOVA) and means were separated using Fisher's Protected LSD at the 0.05 significance level. Data were combined over locations. Dallisgrass control declined as rates of foramsulfuron declined; therefore results are given for treatments containing the highest rate of foramsulfuron (145 g ai/ha). MSMA (2.5 kg ai/ha) fb foramsulfuron 1 WAIT treatments gave moderate control (65%) of dallisgrass 4WAIT, but control declined to 40% 12WAIT. MSMA (2.5 kg ai/ha) fb foramsulfuron 2 WAIT treatments gave good control (85%) of dallisgrass 4WAIT, but control declined to 64% 12WAIT. MSMA (2.5 kg ai/ha) applied 3 times gave good control (89%) of dallisgrass 4WAIT, but control declined to 73% 12 WAIT. Foramsulfuron fb foramsulfuron 1 WAIT treatments gave moderate control (61%) of dallisgrass 4WAIT, but control declined to 39% 12WAIT. MSMA (2.5 kg ai/ha) fb foramsulfuron 2 WAIT fb MSMA 3WAIT treatments provided the highest levels of observed control (95%) of dallisgrass 4WAIT and control levels remained high (93%) 12 WAIT. No other treatments provided adequate control of dallisgrass 12 WAIT. The results from this study suggest that dallisgrass may be controlled with applications of MSMA fb foramsulfuron 2WAIT fb MSMA 3WAIT applied during early to mid summer with minimal phytotoxicity to bermudagrass." |
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| Language: | English |
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| References: | 0 |
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| Note: | "The changing world of weed science"
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Henry, G. M., and F. H. Yelverton. 2005. Dallisgrass control in bermudagrass turf with foramsulfuron. South. Weed Sci. Soc. Proc. 58:p. 121. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2005 Proceedings-SWSS.pdf#page=196
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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