Full TGIF Record # 29212
Item 1 of 1
Publication Type:
Content Type:Abstract or Summary only
Author(s):Riego, D. C.; Dutt, T. E.; Downs, J. P.
Author Affiliation:The Agricultural Group of Monsanto Company, St. Louis, Missouri
Title:Performance of fertilizer and clay granular formulations of dithiopyr in cool season turf
Meeting Info.:Held: December 15-17, 1991, Chicago, IL
Source:Proceedings of the North Central Weed Science Society. Vol. 47, December 1992, p. 114.
# of Pages:1
Publishing Information:Champaign, IL: North Central Weed Science Society
Keywords:TIC Keywords: Turfgrasses; Fertilizers; Clay; Formulations; Dithiopyr; Crabgrass control
Abstract/Contents:"The preemergence and postemergence activity of fertilizer and clay granular formulations of dithiopyr were evaluated on crabgrass (Digitaria spp.) in cool season turf. Seven granular formulations with loadings ranging from 0.086% to 0.207% dithiopyr were evaluated in small, replicated plots and strip trials using shaker bottles, Gandy drop, and rotary spreaders. Rates of 0.06-0.50 lb ai/A were tested in single and sequential applications and compared to the performance of the standard dithiopyr 1 EC formulation. Single applications of all products provided excellent full season preemergence control of crabgrass. Low rates of 0.06 0.09 lb ai/A applied in sequentials also provided excellent crabgrass control, depending on the area or geography. Performance of the formulations appeared to be impacted by dithiopyr rate, granular particle size, and subsequent granule distribution or coverage. Other factors affecting performance such as dithiopyr release from the various granular formulations cannot be evaluated in these studies. Other weeds controlled preemergence were goosegrass (Eleusine indica L. Gaertn) oxalis (Oxalis spp), spurge (Euphorbia spp.) and others. All formulations also provided early (1-6 leaf stage, prior to tiller) postemergence crabgrass control. All formulations of dithiopyr evaluated were safe to cool season turf such as bentgrass, Kentucky bluegrass, perennial ryegrass, and tall fescue."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Riego, D. C., T. E. Dutt, and J. P. Downs. 1992. Performance of fertilizer and clay granular formulations of dithiopyr in cool season turf. Proc. North Cent. Weed Sci. Soc. 47:p. 114.
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