Influence of CGA-277476 on Efficacy of Postemergence Graminicides

Palmer, Eric W.; Shaw, David R.; Holloway, J C

doi:10.1017/s0890037x00044894

Cited by 7 publications

(8 citation statements)

References 20 publications

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“…In contrast, quizalofop-P efficacy on wheat was reduced only in one of six site years (Lacombe in 2003) when tank-mixed with thifensulfuron plus tribenuron (Table 2, Contrast 9) and was not reduced at any site when quizalofop-P was applied at 36 g/ha (Table 2, Contrast 10). Previous studies have reported that both clethodim and quizalofop-P can be antagonized by tank mixtures with other sulfonylurea herbicides but that antagonism was often herbicide and species specific (Burke et al 2002;Jordan 1995;Jordan et al 1993;Minton et al 1989;Palmer et al 1999). Foy and Witt (1992) documented that thifensulfuron reduced sethoxydim activity on large crabgrass and giant foxtail (Setaria faberi Herrm.).…”

Section: Mixtures With Thifensulfuron Plus Tribenuronmentioning

confidence: 99%

Broadleaf Herbicide Effects on Clethodim and Quizalofop-P Efficacy on Volunteer Wheat (Triticum aestivum)

et al. 2006

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Field experiments were conducted at three locations in 2003 and 2004 to examine clethodim and quizalofop-P efficacy on spring wheat seedlings when applied alone or in tank mixtures with herbicides used to control broadleaf weeds. Clethodim at the recommended rate of 30 g/ha reduced spring wheat biomass by 63 to 98% and was only >90% in three of six site years. In contrast, quizalofop-P at the recommended rate of 36 g/ha reduced wheat biomass >90% in all cases. Clethodim or quizalofop-P could be tank mixed with 2,4-D ester, bromoxynil, or bromoxynil plus MCPA ester with little risk of reduced efficacy on wheat. However, 2,4-D amine was highly antagonistic to both herbicides. The commercial mixture of thifensulfuron plus tribenuron reduced clethodim, but not quizalofop-P, efficacy on wheat. Herbicide options exist for simultaneous control of volunteer glyphosate-resistant canola and glyphosate-resistant wheat if the latter technology were to be commercialized in the future.

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Section: Mixtures With Thifensulfuron Plus Tribenuronmentioning

confidence: 99%

Broadleaf Herbicide Effects on Clethodim and Quizalofop-P Efficacy on Volunteer Wheat (Triticum aestivum)

et al. 2006

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“…Reductions in grass control have been observed with various grass species common to soybean [Glycine max (L.) Merr.] (Holshouser and Coble 1990;Vidrine et al 1995) and wheat (Triticum aestivum L.) (Deschamps et al 1990;Olson and Nalewaja 1981) when various acetyl-CoA carboxylase (ACCase)-inhibiting herbicides have been mixed with acetolactate synthase (ALS) inhibitors, photosynthetic (PS) inhibitors, or synthetic aux-in (SA) herbicides (Brommer et al 2000;Green 1989;Palmer et al 1999). Clefoxydim, an ACCase-inhibiting herbicide, controlled three-to four-leaf barnyardgrass and broadleaf signalgrass 100% 2 wk after treatment.…”

Section: Introductionmentioning

confidence: 99%

“…A 22 and 70% reduction in barnyardgrass and broadleaf signalgrass control, respectively, was observed when clefoxydim was mixed with chlorimuron, an ALS inhibitor (Brommer et al 2000). Control of barnyardgrass and broadleaf signalgrass has also been reduced when clethodim, fluazifop-P, and quizalofop, all ACCase-inhibiting herbicides, were mixed with CGA-277476, an ALS-inhibiting herbicide (Palmer et al 1999). Bentazon, a PS inhibitor, reduced sethoxydim grass activity by 51 to 59% on barnyardgrass, broadleaf signalgrass, large crabgrass, and fall panicum (Panicum dichotomiflorum) compared with control observed with sethoxydim, an AC-Case-inhibitor, (Holshouser and Coble 1990;Jordan 1995).…”

Section: Introductionmentioning

confidence: 99%

Antagonism of Cyhalofop Grass Activity by Halosulfuron, Triclopyr, and Propanil¹

Scherder¹,

Talbert²,

Lovelace³

2005

Weed Technology

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Field experiments in 2001 and 2002 at Stuttgart, AR, demonstrated cyhalofop applied POST controlled propanil-susceptible barnyardgrass, propanil-resistant barnyardgrass, and broadleaf signalgrass 67, 65, and 71%, respectively 28 days after treatment (DAT). Halosulfuron applied 1 d before cyhalofop or applied in a tank-mixture reduced broadleaf signalgrass and propanil-resistant or propanil-susceptible barnyardgrass by 35 to 59 percentage points. Triclopyr applied 5, 3, or 1 d before, or mixed with, cyhalofop reduced control of propanil-resistant and propanil-susceptible barnyardgrass, 16 to 41 percentage points, respectively. Triclopyr applied 1 d before cyhalofop or combined with cyhalofop reduced broadleaf signalgrass control 38 and 18 percentage points, respectively compared with cyhalofop alone. Propanil reduced cyhalofop grass control only when mixed with cyhalofop. Application timings, averaged across halosulfuron, propanil, and triclopyr, made 1 d before cyhalofop or tank-mixed with cyhalofop reduced grass control more compared with other application timings made before or after cyhalofop. Barnyardgrass absorption of 14C-cyhalofop alone or mixed with propanil was 86 and 75%, respectively, with 14C-cyhalofop translocation being reduced by 10-fold when propanil was mixed with cyhalofop. Reductions in cyhalofop translocation in combination with propanil may have partially explained the reductions in grass control observed in the field.

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“…In addition, the environmental conditions such as weed's hydric stress followed by the lack of rainfall on the days in the aftermath of the herbicide application, affect the capability of the graminicide to translocate in the leaves to the meristems (Gillespie & Nalewaja, 1989;Todd & Stobble, 1989;Trezzi et al, 2007;Palmer, Shaw, & Holloway, 1999;Jordan, Frans, & McClelland, 1993). For example, to maintain the control level of a Setaria spp.…”

Section: Resultsmentioning

confidence: 99%

“…Various studies report about the antagonism herbicides of the group of the sulfonylurea with ACCase inhibitors (Jordan et al, 1993;Palmer et al, 1999;Blackshaw, Harker, Clayton, & O'Donovan, 2006). Nevertheless, the antagonism of the sulfonylureas herbicides depends on the active ingredient combined, as Jordan (1995) found no antagonism between chlorimuron and clethodim on the control of Urochloa platyphylla, but there was a considerable control decrease when the graminicides used for the association was fluazifop, fenoxaprop or quizalofop.…”

Section: Resultsmentioning

confidence: 99%

Associations of Herbicides on the Simultaneous Control of Horseweed and Italian Ryegrass

Marchioretto¹,

Ferrazzi²,

Magro³

et al. 2018

JAS

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Weed competition negatively affects grain yield on wheat and soybean crops. Due to better practicality and timesaving it is usual the association of broadleaf herbicides with graminicides to control monocot and dicot weeds. However, little is known about the deleterious effects of broadleaf herbicides on graminicides. Thus, the objective of this experiment was to evaluate the effects of simple, double and triple association of broadleaf herbicides with graminicides to control of Italian ryegrass and horseweed. The experiment was conducted into greenhouse on completely randomized experimental design with four replications. The treatments consisted of the graminicides clethodim and clodinafop; the broadleaf herbicides 2,4-D, metsulfuron and saflufenacil and non-selective glyphosate, sprayed isolated and in double and triple association to be compared with a control. The variables evaluated were control (%) at 21 and 28 days after treatments (DAT), and dry weight (g) at 28 DAT. The isolated graminicides and the broadleaf herbicides controlled both Italian ryegrass and horseweed respectively. At the double association of broadleaf with graminicides herbicides, 2,4-D antagonized the effect of clodinafop, and glyphosate mixed with clodinafop decreased the control of the graminicide on Italian ryegrass. At the triple herbicide association, when mixed with glyphosate, metsulfuron decreased the control effect of Italian ryegrass by clethodim. The association of broadleaf herbicides with graminicides is effective on the control of monocot and dicot weeds, but it depends on which herbicide used for the combination. When it is evident the antagonism between broadleaf herbicides and graminicides, the detrimental effects go on grass control.

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Influence of CGA-277476 on Efficacy of Postemergence Graminicides

Cited by 7 publications

References 20 publications

Broadleaf Herbicide Effects on Clethodim and Quizalofop-P Efficacy on Volunteer Wheat (Triticum aestivum)

Broadleaf Herbicide Effects on Clethodim and Quizalofop-P Efficacy on Volunteer Wheat (Triticum aestivum)

Antagonism of Cyhalofop Grass Activity by Halosulfuron, Triclopyr, and Propanil¹

Associations of Herbicides on the Simultaneous Control of Horseweed and Italian Ryegrass

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Influence of CGA-277476 on Efficacy of Postemergence Graminicides

Cited by 7 publications

References 20 publications

Broadleaf Herbicide Effects on Clethodim and Quizalofop-P Efficacy on Volunteer Wheat (Triticum aestivum)

Broadleaf Herbicide Effects on Clethodim and Quizalofop-P Efficacy on Volunteer Wheat (Triticum aestivum)

Antagonism of Cyhalofop Grass Activity by Halosulfuron, Triclopyr, and Propanil1

Associations of Herbicides on the Simultaneous Control of Horseweed and Italian Ryegrass

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Antagonism of Cyhalofop Grass Activity by Halosulfuron, Triclopyr, and Propanil¹