Full TGIF Record # 229487
Item 1 of 1
Publication Type:
i
Report
Author(s):Ross, Merrill A.
Author Affiliation:Purdue University, West Lafayette, IN
Title:Herbicides and mowing for selective control of johnsongrass [Sorghum halepense (L.) Pers.] in tall fescue sods
Section:Forests, rights-of-ways and industrial weed control
Other records with the "Forests, rights-of-ways and industrial weed control" Section
Meeting Info.:Des Moines, Iowa: December 11-13, 1990
Source:Proceedings: North Central Weed Science Society. Vol. 45, 1990, p. 91.
Publishing Information:[Champaign, Illinois]: [North Central Weed Science Society]
# of Pages:1
Abstract/Contents:"Glyphosate, clethodim, sethoxydim, asulam, nicosulfuron, fluazifop, quizalofop, primisulfuron and fenoxaprop were applied to johnsongrass in non-crop situations in Indiana. Herbicides causing unacceptable levels of injury to tall fescue with two applications per season were glyphosate, clethodim, sethoxydim and asulam. Fluazifop, quizalofop and primisulfuron injured tall fescue initially but it recovered subsequently. Fenoxaprop did not interfere with the growth of tall fescue. Two one-half dose applications of herbicide improved johnsongrass control over a single full dose application (Table 1). Two herbicide applications or more than four mowings were the minimum inputs needed to provide a control level of fair (75%). Three herbicide applications or two mowings alternated with two herbicide applications provided good to excellent control (85-95%) (Table 2). While the early October 1989 evaluation of two mowings altered with two fenoxaprop treatments showed that starting with herbicide treatment and ending with mowing was less effective for control of johnsongras shoots than starting with mowing and finishing with herbicide, johnsongrass emerging the following June was reduced by 90 percent with both treatments. No difference regarding mowing sequence was detected in the 1990 experiment. Benefits of control obtained in 1989 carried over to 1990 resulting in lighter infestations into mid-summer. Selective control of johnsongrass in tall fescue sods can be achieved in Indiana in conservation reserve acres, roadsides and other non-crop areas."
Language:English
References:0
Note:This item is an abstract with tables only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Ross, M. A. 1990. Herbicides and mowing for selective control of johnsongrass [Sorghum halepense (L.) Pers.] in tall fescue sods. Proc. North Cent. Weed Sci. Soc. 45:p. 91.
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