Full TGIF Record # 19360
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Web URL(s):http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/1990.pdf#page=23
    Last checked: 12/17/2015
    Notes: Item is within a single large file
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Author(s):Jackson, Nelroy E.; Kackley, Karen E.; Riego, Domingo C.; Dutt, Timothy E.; Bundschuh, Sara H.
Author Affiliation:Product Development Associates, Monsanto Company, Corona, CA
Title:MON 15151-Turf herbicide: Experimental use permit update
Meeting Info.:Papers presented at the annual meeting March 13, 14, 15, 1990; The Nugget Hotel, Sparks, Nevada.
Source:Proceedings of the Western Society of Weed Science. Vol. 43, 1990, p. 23-24.
Publishing Information:Logan, UT: Plant Science Dept., Utah State University.
Keywords:TIC Keywords: Dithiopyr; Digitaria sanguinalis; Crabgrass control
Abstract/Contents:"The performance of MON 15151 1EC for pre- and postemergence control of crabgrass was evaluted in 1989 under a United States Environmental Protection Agency (EPA)-approved Experimental Use Permit (EUP). MON 15151 is a formulation of dithiopyr (3,5-pyridinedicarbothioic acid, 2-(difluoromethyl)-4-(2-methylpropyl)-6-(trifluromethyl)-S, S-dimethyl ester). The trade name for turf uses is Dimension herbicide. Trials were established, under commercial use conditions, throughout the United States on both warm and cool-season turfgrasses. (Total EPA-approved EUP allocations for the United States were 3785 L of product and 540 ha treated.) MON 15151 1EC was distributed to selected golf courses, lawncare companies, landscape companies as well as municipal and industrial organizations and was applied through commercial equipment. Performance was evaluated on sites up to one-half hectare in size. MON 15151 provided excellent season-long preemergence control of crabgrass. Rates required for season-long control with a single spring application were 0.43 to 0.56 kg/ha for the Northeast, Midwest and CA and 0.56 to 0.84 kg/ha for the South and Southeast. Rates of MON 15151 required to provided postemergence control of crabgrass in the 1 to 3 leaf stage are 0.28 to 0.43 kg/ha in CA, 0.43 to 0.56 kg/ha in the Northeast and Midwest and 0.56 to 0.84 kg/ha in the South and Southeast. Control of plants with 1 to 3 tillers was improved with the addition of MSMA. Effective rates are 0.28 kg/ha MON 15151 plus 0.56 to 1.12 kg/ha MSMA for the Northeast, Midwest and CA, and 0.56 kg/ha MON 15151 plus 1.12 to 2.24 kg/ha MSMA for the South and Southeast. Excellent turf safety was demonstrated on both cool-season and warm-season turfgrasses (Table 1). MON 15151 also provides preemergence control or suppression of a number of other annual grass and broadleaf weeds (Table 2). The EPA has granted an EUP extension for MON 15151 1EC and MON 15104 1EC, an alternate formulation, for expanded evaluation in 1990. Total allocations approved under the extension are 5981 L of product and 1603 ha treated."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Jackson, N. E., K. E. Kackley, D. C. Riego, T. E. Dutt, and S. H. Bundschuh. 1990. MON 15151-Turf herbicide: Experimental use permit update. Proc. West. Soc. Weed Sci. 43:p. 23-24.
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    Last checked: 12/17/2015
    Notes: Item is within a single large file
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