Full TGIF Record # 43086
Item 1 of 1
Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Coats, G. E.; Helms, R. B.; Taylor, J. M.
Author Affiliation:Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS 39762
Title:Tolerance of wildflowers and bahiagrass (Paspalum notatum Fluegge) seedhead suppression with Plateau (AC 263,222)
Section:Papers and Abstracts Presented
Other records with the "Papers and Abstracts Presented" Section
Meeting Info.:49th Annual Meeting, Charlotte, NC, January 15-17, 1996
Source:Southern Weed Science Society Proceedings. Vol. 49, 1996, p. 204.
Publishing Information:Champaign, IL: Southern Weed Science Society.
# of Pages:1
Abstract/Contents:"Experiments were conducted in 1995 to evaluate the potential of Plateau (AC 263,222) for bahiagrass seedhead suppression on highway rights-of-way. Due to limited herbicide use and favorable growing conditions, wildflowers, such as lanceleaf coreopsis (Coreopsis lanceolata L.) and verbena (Verbena rigida Sprengel.), are common on some bahiagrass roadsides where these experiments were conducted. Therefore, the potential for injury to these native wildflowers was also evaluated. In Experiment one, Plateau was evaluated at 53 or 71 g ai/ha and compared to 26 g ai/ha Oust (sulfometuron). Two untreated plots were included, one without mowing and one mowed at a height of 15 cm with a rotary mower after sensecence of winter weeds on June 7, 1995. Plateau and Oust were applied on May 16, 1995. In Experiment two, Plateau was evaluated at 53 or 71 g/ha alone or in combination with 280 g/ha Roundup (glyphosate). Roundup was also applied alone at 280 g/ha. Lanceleaf coreopsis was evaluated for injury in Experiment one and lanceleaf coreopsis and verbena were evaluated for injury in Experiment two. Bahiagrass seedhead suppression was evaluated in both experiments and bahiagrass was evaluated for discoloration in Experiment two. In Experiment one, little injury was observed on lanceleaf coreopsis. Injury occurred to lanceleaf coreopsis only following 71 g/ha Plateau or 26 g/ha Oust at 4 and 11 WAT (weeks after treatment). The only significant injury was at 4 WAT following 71 g/ha Plateau (15%). By 13 WAT, no injury was observed due to any treatment. All treatments of Plateau or Oust suppressed bahiagrass seedheads season-long (88% or greater). Seedhead production stimulation by mowing could be observed when comparing untreated, mowed plots to untreated, unmowed plots. Unmowed, untreated plots had 73, 65, and 38% fewer seedheads 11, 13, and 15 WAT, respectively, than the untreated plots which were mowed. In Experiment two, both lanceleaf coreopsis and verbena were uninjured through 11 WAT. As in the first experiment, 53 to 71 g/ha Plateau provided excellent season-long seedhead suppression of bahiagrass through 11 WAT (88% to 90%). Plateau provided better suppression of bahiagrass seedheads than 280 g/ha Roundup. Suppression of bahiagrass seedheads from 280 g/ha Roundup was 85, 78, 78, and 35% at 4, 6, 8, and 11 WAT, respectively. Bahiagrass discoloration was greatest at 6 WAT. Discoloration of bahiagrass from 53 g/ha Plateau was 18% at 6 WAT. Discoloration increased by 10% when 280 g/ha Roundup was added to 53 g/ha Plateau. Discoloration of bahiagrass was 28% following 71 g/ha or 280 g/ha Roundup tank-mixed with either rate of Plateau. No discoloration was observed from 280 g/ha at 6 WAT. By 8 WAT, the only significant discoloration was from 71 g/ha Plateau alone or tank-mixed with with 280 g/ha Roundup (15 to 20%). By 11 WAT, no significant discoloration was observed."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Coats, G. E., R. B. Helms, and J. M. Taylor. 1996. Tolerance of wildflowers and bahiagrass (Paspalum notatum Fluegge) seedhead suppression with Plateau (AC 263,222). South. Weed Sci. Soc. Proc. 49:p. 204.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=43086
If there are problems with this record, send us feedback about record 43086.
Choices for finding the above item:
Find Item @ MSU
MSU catalog number: SB 611 .S6
Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)