Full TGIF Record # 16331
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Web URL(s):http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/1989.pdf#page=304
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Kopec, D. M.; Heathman, S.; Mancino, C. F.; Moharram, H. N.
Author Affiliation:University of Arizona, Tucson, AZ
Title:Evaluation of Purple Nutsedge Suppression Using Imizaquin Herbicide.
Meeting Info.:Held March 13-16, 1989, Honolulu, HI.
Source:Proceedings of the Western Society of Weed Science. Vol. 42, March 1989, p. 286-287.
Publishing Information:Logan, UT: Plant Science Dept., Utah State University.
Keywords:TIC Keywords: Cyperus rotundus; Suppression; Herbicides; Weed control; Application rates; Iron chlorosis; Color; Clippings; Cynodon; Percent living ground cover; Quality
Abstract/Contents:"Field studies were conducted to determine (a) effective rates (ai/a) and (b) weed control efficacy through multiple application of imizaquin {2-[4, 5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl] -3-quinolinecarboxylic acid} herbicide on purple nutsedge (Cyperus rotundus). During 1987, two (2) applications of imizaquin at 0.50 lb. (ai/a) were necessary to reduce stands of 100% infested plots of nutsedge to 20%, followed by lesser control for the 0.38 and 0.25 lb. (ai/a) treatments. Late season control was the same in late October for the three treatments applied after the third application made on September 27. Increasing rates of imizaquin reduced turfgrass quality due to short lived leaf yellowing (similar to iron chlorosis symptoms). Increased rates also reduced clipping growth of the bermudagrass turf. During repeat applications of 0.50 lb. (ai/a) conducted on 100% nutsedge stands in 1988, there was no reduction until two weeks after the second bi-monthly sequential application. Two additional applications were necessary to maintain suppression. Eight (8) weeks after the initial treatment, the single application developed more nutsedge ground cover than that of the control. Repeat applications at 0.50 lb. (ai/a) reduced turf quality through leaf yellowing. Further research is warranted to detect the mechanisms(s) of suppression and competitive effects of imizaquin treated nutsedge and bermuda turfs."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kopec, D. M., S. Heathman, C. F. Mancino, and H. N. Moharram. 1989. Evaluation of Purple Nutsedge Suppression Using Imizaquin Herbicide.. Proc. West. Soc. Weed Sci. 42:p. 286-287.
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    Last checked: 05/04/2017
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    Notes: Item is within a single large file
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MSU catalog number: SB 610 .W43 v.42
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