Web URL(s): http://www.ncwss.org/proceed/2007/Abstracts/218.pdf Publication Type:
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Report Author(s): Fick, Walter H. Author Affiliation: Associate Professor, Department of Agronomy, Kansas State University, Manhattan, KS Title: Nicosulfuron plus metsulfuron combinations for Johnsongrass control in bermudagrass Section: Invasive weeds, forage and rangelandOther records with the "Invasive weeds, forage and rangeland" Section Meeting Info.: St. Louis, Missouri: December 10-13, 2007 Source: 2007 North Central Weed Science Society Proceedings . 2007, p. 218.# of Pages: 1 Publishing Information: Champaign, Illinois: North Central Weed Science Society Keywords: TIC Keywords: Cynodon ; Herbicide combinations ; Herbicide efficacy ; Herbicide evaluation ; Metsulfuron methyl ; Nicosulfuron ; Sorghum halepense ; Weed control Abstract/Contents: "Johnsongrass is a perennial warm-season grass that reproduces by rhizomes and seeds. Johnsongrass is anoxious weed in Kansas and is particularly troublesome in the southeastern part of the state. The objective of this research was to compare the efficacy of single and sequential applications of nicosulfuron plus metsulfuron for Johnsongrass control in bermudagrass pasture. The study site was located in Montgomery County. Herbicides were applied in 187 L ha-1 spray volumes using a CO2 -pressurized backpack sprayer. Individual plots were 4 by 7.6 m in size and treatments were replicated in 3 blocks. Herbicides were first applied July 13, 2007 to 40-cm tall Johnsongrass plants about 15 days after harvesting the bermudagrass for hay. The sequential treatments were applied on August 17, 2007, 18 days after a second hay harvest. Plots were evaluated for percent control 2 weeks after the first application, at the time of the sequential treatment applications, and at the end of the season on September 28, 2007. Single applicat ions contained 7.2 to 10.8 g ha-1 nicosulfuron plus 1.1 to 1.7 g ha-1 metsulfuron. Sequential treatments contained 5.4 to 10.8 g ha-1 nicosulfuron plus 0.9 to 1.7 g ha-1 metsulfuron. Other treatments applied only once included nicosulfuron + metsulfuron + diuron (7.2 + 1.1 + 147 g ha-1 and 10.8 + 1.7 + 147 g ha-1 ) and sulfosulfuron at 11.5 g ha-1 . All treatments except those containing diuron provided greater than 70% control of Johnsongrass 2 weeks after treatment. Diuron appeared to be antagonistic with nicosulfuron and/or metsulfuron and initially caused significant leaf burn on the bermudagrass. On August 17, at the time of applying the sequential treatments, all treatments provided greater than 80% control of Johnsongrass. At the end of the growing season, only the sequential treatments and sulfosulfuron provided greater than 90% control of Johnsongrass." Language: English References: 0 Note: This item is an abstract only! ASA/CSSA/SSSA Citation (Crop Science -Like - may be incomplete ): Proc. North Cent. Weed Sci. Soc. p. 218.Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=225572 If there are problems with this record, send us feedback about record 225572 . Choices for finding the above item : Web URL(s): http://www.ncwss.org/proceed/2007/Abstracts/218.pdf SB 610 .N6 Find from within TIC: Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)
