Full TGIF Record # 68497
Item 1 of 1
Web URL(s):http://www.newss.org/proceedings/proceedings_1999_vol53.pdf#page=103
    Last checked: 07/24/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Watschke, T. L.; Borger, J. A.
Author Affiliation:Watschke: Professor, Department of Agronomy, Penn State University, University Park, PA; Borger: Research Assistant, Department of Agronomy, Penn State University, University Park, PA
Title:Seedhead suppression of annual bluegrass on a putting green
Meeting Info.:Cambridge, MA: January 4-7, 1999
Source:Proceedings of the 53rd Annual Meeting of the Northeastern Weed Science Society. Vol. 53, 1999, p. 103.
Publishing Information:College Park, MD: Northeastern Weed Science Society
# of Pages:1
Keywords:TIC Keywords: Seedhead inhibition; Poa annua; Golf courses; Golf greens; Agrostis stolonifera; Herbicide combinations; Growth regulators; Adjuvants; Mefluidide; Weed control; Poa annua control
Abstract/Contents:"This study was conducted on a mixed stand of creeping bentgrass (Agrostis stolonifera) and Poa annua at the Penn State Blue Golf Course in State College, PA. The objective of the study was to evaluate selected growth regulators, with and without additional adjuvants, for the seedhead suppression of Poa annua. All of the treatments were applied on March 31, and, in some cases, April 7 and April 14, 1998 using a three-foot CO₂ powered boom sprayer calibrated to deliver 40 GPA using two 6504 nozzles at 30 psi. The turf was maintained using practices for irrigation, mowing, and fertilization that would be typical for a green. The green did not receive any aerification/topdressing prior to or during the study. Phytotoxicity ratings taken on April 27, 1998 revealed that those treatments that had follow-up applications of seaweed cocktail (2 WAT) caused significant injury when compared to untreated turf. Turf that received all other treatments was rated to be not different from untreated turf. When seedhead suppression was rated on May 5, 1998, several of the treatments caused good suppression (>80%). Turf treated with follow-up applications of seaweed cocktail had the greatest seedhead suppression (93%), although phytotoxicity was unacceptable. Mefluidide Lite at 40 oz/A suppressed seedheads by 70%. By adding MacroSorb Foliar at 2 oz/M at the time of application followed by the same rate of MacroSorb Foliar one and two weeks later, seedhead suppression was increased by 82%. The addition of Surf-Side 37 at 2 oz/M at the time of Mefluidide Lite application followed by another 2 oz/M application of Surf-Side 37 two weeks later increased seedhead suppression to 88%. When the rate of Mefluidide Lite was reduced to 20 oz/A, additions of MacroSorb Foliar did not improve seedhead suppression to an acceptable level. When seedhead suppression was rated on May 15, 1998, Mefluidide Lite with Surf-Side 37 and Mefluidide Lite with seaweed cocktail were the only two treatments that suppressed seedheads by more than 80%. Mefluidide Lite alone at 40 oz/A suppressed seedheads by 37% by May 15, 1998. Clearly, the efficacy and longevity of seedhead suppression can be enhanced by adjuvants."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Watschke, T. L., and J. A. Borger. 1999. Seedhead suppression of annual bluegrass on a putting green. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 53:p. 103.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=68497
If there are problems with this record, send us feedback about record 68497.
Choices for finding the above item:
Web URL(s):
http://www.newss.org/proceedings/proceedings_1999_vol53.pdf#page=103
    Last checked: 07/24/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
Find Item @ MSU
MSU catalog number: SB 610 .N62 v. 53
Find from within TIC:
   Digitally in TIC by file name: newss1999
Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)