Web URL(s): http://www.swss.ws/wp-content/uploads/docs/2004%20Proceedings-SWSS.pdf#page=442 Publication Type:
i
Report Author(s): Main, C. L. ;
Robinson, D. K. ;
Teuton, T. C. ;
Mueller, T. C. Author Affiliation: Department of Plant Sciences, University of Tennessee, Knoxville Title: Management options for star-of-Bethlehem (Ornithagalum umbellatum L.) control in bermudagrass turf Section: PostersOther records with the "Posters" Section Meeting Info.: Memphis, Tennessee: January 26-28, 2004 Source: Proceedings: Southern Weed Science Society: 57th Annual Meeting . Vol. 57, 2004, p. 344.# of Pages: 1 Publishing Information: Champaign, Illinois: Southern Weed Science Society Keywords: TIC Keywords: Cynodon dactylon ; Herbicide efficacy ; Herbicide evaluation ; Ornithogalum umbellatum ; Weed control Abstract/Contents: "Star-of-Bethlehem is a perennial of the liliaceae (lily) family that is commonly confused with wild garlic (Allium canadense L.). Star-of-Bethlehem leaves are channeled, and are 3-8 mm wide with a conspicuous pale green to white midrib. Plants grow to a maximum height of 15-20 cm at flowering. Field studies were conducted near Knoxville, TN during late March and early April 2002 and 2003, respectively, for star-of-Bethlehem control in dormant bermudagrass turf. Plots (1.5 m by 4.5 m) were arranged on established common bermudagrass turf containing a uniform infestation of newly emerged star-of-Bethlehem (50 plants/m2 ). Herbicides evaluated for star-of-Bethlehem control included: bromoxynil at 1.24 kg ai/ha, halosulfuron at 0.07 kg ai/ha, imazaquin at 0.56 kg ai/ha, metsulfuron at 0.04 kg ai/ha, bromoxynil plus imazaquin, bromoxynil plus halosulfuron, bromoxynil plus metsulfuron, 2,4-D at 1.88 kg ai/ha plus dicamba at 1.0 kg ai/ha plus mecoprop at 0.20 kg ai/ha, and triclopyr at 1.62 kg ai/ha plus clopyralid at 0.54 kg ai/ha. A nontreated control was included for comparison and non-ionic surfactant at 0.25% v/v was included with treatments that contained halosulfuron, imazaquin, or metsulfuron. Herbicides were applied using a CO2 -pressurized backpack sprayer that delivered 215 L/ha of water carrier with 11001 nozzles at 240 kPa. Treatments were arranged in a randomized complete block design with four replications of each treatment. Applications were made on April 3, 2002 and March 25, 2003 to dormant common bermudagrass turf. Star-of-Bethlehem was 8 to 10 cm tall when treated. Visual evaluations of star-of-Bethlehemcontrol and injury to bermudagrass turf (0% = no control or injury and 100% = complete control or turfgrass death) were recorded 21, 35, and 90 DAT. Halosulfuron, imazaquin, metsulfuron, 2,4-D plus dicamba plus mecoprop, and triclopyr plus clopyralid controlled star-of-Bethlehem 35% at most 35 days after treatment (DAT). Bromoxynil alone or mixed with halosulfuron, imazaquin, or metsulfuron controlled star-ofBethlehem at least 80% at 35 DAT. Imazaquin and imazaquin plus bromoxynil injured bermudagrass 51% 35 DAT. This injury was characterized by decreased bermudagrass postdormancy transition and was transient." Language: English References: 0 Note: "The changing world of weed science"This item is an abstract only! ASA/CSSA/SSSA Citation (Crop Science -Like - may be incomplete ): Ornithagalum umbellatum L.) control in bermudagrass turf. South. Weed Sci. Soc. Proc. 57:p. 344.Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=225013 If there are problems with this record, send us feedback about record 225013 . Choices for finding the above item : Web URL(s): http://www.swss.ws/wp-content/uploads/docs/2004%20Proceedings-SWSS.pdf#page=442 b2207931 Find from within TIC: Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)
