Downy Brome (<i>Bromus tectorum</i>) Control in Established Alfalfa (<i>Medicago sativa</i>)

Wilson, R. G.

doi:10.1017/s0890037x00042950

Cited by 14 publications

(21 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar, no visual injury was recorded in established alfalfa when imazethapyr was applied on dormant stands of alfalfa (Malik et al, 1993). Opposite, metribuzin caused crop injury of alfalfa as a result of increased rate from 1.1 to 1.7 kg*ha -1 (Wilson, 1997). Earlier, Wilson (1981) reported minor visible injury of alfalfa following the application of metribuzin and terbacil.…”

Section: Visible Alfalfa Injurymentioning

confidence: 70%

“…Similar, pronamide at 1.7 kg*ha -1 effectively controlled Kochia scoparia and Salsola kali, but did not Descurainia pinnata and Lactuca serriola (Wilson, 1981). Bromus tectorum was effectively removed from established alfalfa, and alfalfa yield increased with fall applications of hexazinone, metribuzin, pronamide, and terbacil (Wilson, 1997).…”

Section: Weed Control and Herbicide Efficacymentioning

confidence: 88%

“…Metribuzin at 1.1 and 1.7 kg*ha -1 , pronamide at 1.1 kg*ha -1 , and terbacil at 0.8 kg*ha -1 excellent suppressed Bromus tectorum biomass and increased alfalfa yield from 141% to 224% compared to the nontreated control (Wilson, 1997). In Illinois, increased alfalfa dry matter yields were obtained with an application of metribuzin at 0.84 kg*ha -1 , because the herbicide excellent controlled Bromus tectorum (Kapusta and Strieker, 1975).…”

Section: Dry Matter Yield (Kg*ha -1 )mentioning

confidence: 93%

“…Results from several experiments have shown that many herbicides can be used to control weeds selectively in established alfalfa (Wilson, 1981;Cosgrove and Barrett, 1987;Wilson, 1989;Malik et al, 1993;Wilson, 1997;Ashigh et al, 2009). Herbicides such as imazetapyr, metribuzin and pronamide generally are applied during alfalfa dormant period (November -February) to control weeds effectively, and, in same time, to avoid alfalfa crop injury (Waddington, 1980;Peters et al, 1984).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Weed control in dormant alfalfa (Medicago sativa L.) with active ingredients� metribuzin, imazetapyr and pronamide

Pacanoski¹,

Týr²,

Vereš³

2017

JCEA

View full text Add to dashboard Cite

Efficacy of herbicides in control of prevailing weeds during the 3 years field trial period was ranged of 48.5% to 100.0%. No visual alfalfa injured was determined by any rates during the experimental period, and consequently, none of the applied herbicides reduced first-harvest alfalfa yields. Alfalfa yield was markedly affected by herbicide efficacy in all experimental years, particularly in the second year, where yields of herbicide treatments were similar to that of the weed free control.

show abstract

Section: Visible Alfalfa Injurymentioning

confidence: 70%

Section: Weed Control and Herbicide Efficacymentioning

confidence: 88%

Section: Dry Matter Yield (Kg*ha -1 )mentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Weed control in dormant alfalfa (Medicago sativa L.) with active ingredients� metribuzin, imazetapyr and pronamide

Pacanoski¹,

Týr²,

Vereš³

2017

JCEA

View full text Add to dashboard Cite

show abstract

“…Managing weeds in a timely manner after alfalfa germination is necessary to prevent stand decline resulting in a reduction in forage yield and quality [48].…”

Section: Rye Effect On Weed Suppression In Alfalfa Plotsmentioning

confidence: 99%

Allelopathic Effects of Cereal Rye on Weed Suppression and Forage Yield in Alfalfa

Adhikari¹,

Mohseni-Moghadam²,

Missaoui³

2018

AJPS

View full text Add to dashboard Cite

Cereal rye (Secale cereale L.) is widely used as cover crop because of its allelopathic effects and effectiveness in weed suppression. In the Southeastern US, rye is traditionally grown for winter grazing in dormant bermudagrass pastures, where alfalfa (Medicago sativa L.) is increasingly planted as a companion crop. The effect of cereal rye on alfalfa as a succeeding crop is not known. Therefore, the objective of this study was to evaluate the effect of cereal rye on alfalfa seedling emergence, growth, forage yield, and weed suppression in field conditions. Rye was planted in the fall (mid-October) and the biomass was harvested in spring (March) followed by disking and incorporation of the remaining stubble in the soil. Alfalfa seed was planted four weeks later. The experiment design was a split-plot design with the main plots being no-rye and after-rye and the sub-plots being alfalfa cultivars. Ten alfalfa cultivars were planted in three replications after-rye and three replications with no-rye as a previous crop. In the establishment year, weed density was significantly (p < 0.01) lower in the after-rye alfalfa plots by nearly 77%. Alfalfa seedling counts were also significantly lower (p < 0.01) among the cultivars planted in the after-rye block compared to the no-rye, with a seedling count reduction between 35% and 64%. Reduction in total dry biomass yield varied from 15% to 43% among the cultivars planted in the after-rye block. The results of this study also suggest that the allelopathic effect of rye on alfalfa may not persist beyond the establishment season, but the enormous yield reduction in the first production season may constitute a costly economic penalty in terms of forage production. There was variation in the response of different alfalfa cultivars to the effect of rye residue as indicated by the variation in the magnitude of reduction in stand count and forage yield. This warrants more research in multi-location trials with and without rye in order to establish whether there is genetic variation in alfalfa germplasm in their tolerance to cereal rye allelopathy.

show abstract

Evaluation of the summer slump application of saflufenacil on nondormant conventional alfalfa

Devkota

Bachie

2021

Crop Forage & Turfgrass Mgmt

View full text Add to dashboard Cite

Alfalfa (Medicago sativa L.) is an important crop for the low desert region of southwestern United States. A field study was conducted to evaluate tolerance of established nondormant conventional alfalfa to saflufenacil applied during the summer slump. Treatments consisted of saflufenacil applied alone at 0.7 or 1.4 oz ac −1 , or saflufenacil at 0.7 oz ac −1 tank-mixed with imazamox, bromoxynil, or metribuzin at 0.8, 6.0, or 16.0 oz ac −1 , respectively. Methylated seed oil (as surfactant) and ammonium sulfate (as adjuvant) were tank-mixed at 1 and 2.5% (v/v), respectively, to each herbicide treatment. At 2 d after treatment, alfalfa injury from saflufenacil at the lower rate was lowest (21%); whereas the injury was highest (48%) from saflufenacil plus bromoxynil treatment. The alfalfa injury progressed for 2 wk after treatment (WAT) and was >36% for all treatments except for saflufenacil at the lower rate. Crop recovery was observed about 2 WAT and minimal injury (<3%) occurred at 4 WAT. Alfalfa height was similar across herbicide treatments and the weed-free (non-treated) control. At 4 WAT, average alfalfa height for all treatments was 11 inches or greater. The alfalfa injury observed during the initial weeks did not translate into biomass yield reduction. Accordingly, there was no significant difference in alfalfa biomass yield among the treatments. Overall, alfalfa biomass yield was 0.57 and 0.47 ton ac −1 or greater at 4 WAT (1st cutting) and 8 WAT (2nd cutting), respectively, after herbicide application. Our results illustrate that saflufenacil and its tank-mix with imazamox, bromoxynil, or metribuzin caused injury to nondormant conventional alfalfa during early weeks, but alfalfa recovered by 2 wk after herbicide application without height and biomass yield reduction.

show abstract

Downy Brome (Bromus tectorum) Control in Established Alfalfa (Medicago sativa)

Cited by 14 publications

References 11 publications

Weed control in dormant alfalfa (Medicago sativa L.) with active ingredients� metribuzin, imazetapyr and pronamide

Weed control in dormant alfalfa (Medicago sativa L.) with active ingredients� metribuzin, imazetapyr and pronamide

Allelopathic Effects of Cereal Rye on Weed Suppression and Forage Yield in Alfalfa

Evaluation of the summer slump application of saflufenacil on nondormant conventional alfalfa

Contact Info

Product

Resources

About