Full TGIF Record # 278027
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Web URL(s):http://www.wsweedscience.org/wp-content/uploads/WSWS_2016_Proceedings_FINAL.pdf#page=68
    Last checked: 11/17/2016
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Publication Type:
Content Type:Abstract or Summary Only
Author(s):Umeda, Kai
Author Affiliation:University of Arizona, Phoenix, AZ
Title:Efficacy and comparison of herbicides for Perennial Ryegrass removal during spring transition
Section:Project 2: Weeds of horticultural crops
Other records with the "Project 2: Weeds of horticultural crops" Section
Meeting Info.:Albuquerque, New Mexico: March 7-10, 2016
Source:Western Society of Weed Science Annual Meeting 2016. Vol. 69, 2016, p. 57-58.
# of Pages:2
Publishing Information:Las Cruces, New Mexico: Western Society of Weed Science
Keywords:TIC Keywords: Cynodon; Desert climate; Flazasulfuron; Foramsulfuron; Herbicide evaluation; Lolium perenne; Penoxsulam; Poa annua control; Pronamide; Spring transition; Trifloxysulfuron
Abstract/Contents:"Spring transition occurs in desert turfgrasses when bermudagrass emerges from winter dormancy and winter overseeded perennial ryegrass declines with the summer heat. The summer heat alone no longer eliminates all of the perennial ryegrass that is bred to withstand higher temperatures. To enable the bermudagrass to re-establish for the summer in a timely manner, herbicides are used to facilitate the selective ryegrass removal. Several ALS enzyme-inhibiting herbicides being used successfully in the desert region include foramsulfuron, trifloxysulfuron, and flazasulfuron. Pronamide, a different mode of action and slower acting herbicide, performs as a transitionaide. Penoxsulam is a newer ALS enzyme-inhibiting herbicide introduced recently as a transitionaide. Foramsulfuron, trifloxysulfuron, and flazasulfuron significantly affected and reduced ryegrass quality after application in May and then totally eliminated ryegrass by early July. Foramsulfuron also provided nearly complete control of P. annua while trifloxysulfuron also gave acceptable control at 88%. Bermudagrass cover was not complete with bare ground observed in foramsulfuron, trifloxysulfuron, and flazasulfuron treated plots. Penoxsulam and pronamide 58 treated ryegrass equally displayed slow rates of ryegrass removal that was less than complete in early July. Both exhibited plots with less bare ground indicating less bermudagrass stunting than that caused by foramsulfuron, trifloxysulfuron, and flazasulfuron. Pronamide only reduced half of the P. annua while penoxsulam did not control P. annua."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Umeda, K. 2016. Efficacy and comparison of herbicides for Perennial Ryegrass removal during spring transition. Proc. West. Soc. Weed Sci. 69:p. 57-58.
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    Last checked: 11/17/2016
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    Notes: Item is within a single large file
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