Control of Velvetleaf (Abutilon theophrasti) and Common Cocklebur (Xanthium pensylvanicum) in Soybeans (Glycine max) with Sequential Applications of Mefluidide and Acifluorfen

Glenn, Scott; Hook, Barbara J.; Peregoy, Robert S.; Wiepke, T.

doi:10.1017/s0043174500082187

Cited by 6 publications

(5 citation statements)

References 11 publications

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“…Most studies indicate that POST herbicides are most effective on smaller weeds (7,8,10). Controlling larger weeds normally requires higher herbicide rates, which may reduce effectiveness (12).…”

Section: Introductionmentioning

confidence: 99%

Using Reduced Rates of Postemergence Herbicides in Soybeans (Glycine max)

1991

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Eight field studies were conducted in soybeans at seven locations in Kansas over a 3-yr period to examine the efficacy of using reduced rates of the herbicides acifluorfen, bentazon, chlorimuron, and tank mixes of acifluorfen and bentazon. POST applications of these herbicides at 1/2X rates at 2 wk after planting (WAP) resulted in broadleaf weed control similar to that obtained from standard treatments of 1X rates applied at 4 WAP at six of seven studies with acifluorfen, bentazon, and acifluorfen plus bentazon and at five of seven studies with chlorimuron. One-quarter rates applied 2 WAP were equivalent to standard treatments for broadleaf weed control in four of seven studies with acifluorfen and chlorimuron, five of seven studies with bentazon, and six of seven studies with acifluorfen plus bentazon. One cultivation at 4 WAP, increased the broadleaf weed control with all herbicide treatments.

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Section: Introductionmentioning

confidence: 99%

Using Reduced Rates of Postemergence Herbicides in Soybeans (Glycine max)

1991

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“…As postemergence herbicides were developed, researchers observed more effective weed control when herbicides were applied to earlier growth stages at a given rate (1,7,8,11,12). Higher herbicide rates and sequential applications were often required to control weeds at later growth stages (14,15,16).…”

Section: Introductionmentioning

confidence: 99%

“…The use of postemergence herbicides for grass and broadleaf weed control, without preemergence herbicides, has also been investigated (3,8,9). However, antagonism caused by tank-mixing postemergence grass and broadleaf herbicides can reduce efficacy and require the use of higher herbicide rates (3,4,5,11).…”

Section: Introductionmentioning

confidence: 99%

Weed Control in Soybeans (Glycine max) with Reduced Rates of Postemergence Herbicides

et al. 1989

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Field studies were conducted at three sites in Missouri in 1986 and 1987 to evaluate the performance of below-label rates of bentazon, acifluorfen, and chlorimuron tank mixed with sethoxydim and applied to soybeans 7 and 14 days after planting to evaluate broadleaf and grass weed control and weed seed production. Sequential applications of 0.25X-labeled rates of all three broadleaf herbicides tank mixed with 0.5X sethoxydim rates controlled giant foxtail, velvetleaf, and common cocklebur equivalent to one application of standard-labeled rates of the same tank mixes. Single applications of below-labeled rates of the postemergence herbicides did not control weeds, and soybean yields were not equal to sequential 0.25X or single full-rate treatments. A preemergence treatment of clomazone plus imazaquin applied at labeled rates controlled weeds, and soybean yields were equal to a handweeded check in both years at all test locations. Weeds survived and produced seed to reinfest the plots the following year unless nearly 100% control was achieved.

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“…The use of addi tives increased the control of velvetleaf and prickly sida in 1985, but there was no difference between petroleum oil concentrate and mefluidide as en hancing agents. Glenn et al (3) reported that adding mefluidide to acifluorfen often enhanced the con trol of velvetleaf and common cocklebur. How ever, they did not evaluate an oil-base additive.…”

Section: Volume 1 Issue 2 (April) 1987mentioning

confidence: 99%

“…McWhorter and Barrentine (5) noted that sequential applications of mefluidide plus dinoseb or 2,4-DB enhanced common cocklebur control. Glenn et al (3) noted that sequential appli cations of mefluidide plus acifluorfen allowed greater flexibility in the timing of application without reducing the control of velvetleaf or common cockle bur.…”

Section: Volume 1 Issue 2 (April) 1987mentioning

confidence: 99%

Mefluidide as an Enhancing Agent for Postemergence Broadleaf Herbicides in Soybeans (Glycine max)

Blumhorst¹,

Kapuśta²

1987

Weed technol.

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In field studies, mefluidide {N-[2,4-dimethyl-5-[[(trifluoromethyl)sulfonyl] amino] phenyl] acetamide} was most effective as an enhancing agent for bentazon [3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide] and/or acifluorfen {5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid} when applied as a tank mixture compared to sequential applications. The influence of mefluidide rate on weed control was not consistent. Additives improved the control of several weed species evaluated, but mefluidide generally was only equal to petroleum oil concentrate (phytobland petroleum oil plus emulsifiers in an 83:17 ratio) as an enhancing agent for bentazon and/or acifluorfen.

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Control of Velvetleaf (Abutilon theophrasti) and Common Cocklebur (Xanthium pensylvanicum) in Soybeans (Glycine max) with Sequential Applications of Mefluidide and Acifluorfen

Cited by 6 publications

References 11 publications

Using Reduced Rates of Postemergence Herbicides in Soybeans (Glycine max)

Using Reduced Rates of Postemergence Herbicides in Soybeans (Glycine max)

Weed Control in Soybeans (Glycine max) with Reduced Rates of Postemergence Herbicides

Mefluidide as an Enhancing Agent for Postemergence Broadleaf Herbicides in Soybeans (Glycine max)

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