An integrated approach to control glyphosate‐resistant <i>Ambrosia trifida</i> with tillage and herbicides in glyphosate‐resistant maize

Ganie, Zahoor A.; Lindquist, John L.; Jugulam, Mithila; Kruger, Greg R.; Marx, David B.; Jhala, Amit J.

doi:10.1111/wre.12244

Cited by 29 publications

(31 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This research confirms that spring tillage can be an effective weed control tool for herbicide‐resistant giant ragweed, especially when used in conjunction with other effective weed control strategies (Ganie et al, 2016, 2017). Of the treatments evaluated, the 14 days post‐emergence onset treatment was optimal, achieving 54% control of giant ragweed while minimizing potential yield reductions due to delayed planting of corn or soybean.…”

Section: Useful Conversionssupporting

confidence: 75%

“…Giant ragweed emergence was reduced the week following tillage when tillage occurred early, which provides additional time for post‐emergence weed control operations. This research suggests that delayed pre‐plant tillage and planting can be effectively used as part of an integrated weed management plan to control herbicide‐resistant giant ragweed (Ganie et al, 2016, 2017).…”

Section: Useful Conversionsmentioning

confidence: 99%

See 1 more Smart Citation

Giant Ragweed Emergence Pattern Influenced by Spring Tillage Timing in Minnesota

Goplen

Becker

Coulter

et al. 2018

Crop Forage & Turfgrass Mgmt

View full text Add to dashboard Cite

show abstract

Section: Useful Conversionssupporting

confidence: 75%

Section: Useful Conversionsmentioning

confidence: 99%

Giant Ragweed Emergence Pattern Influenced by Spring Tillage Timing in Minnesota

Goplen

Becker

Coulter

et al. 2018

Crop Forage & Turfgrass Mgmt

View full text Add to dashboard Cite

show abstract

“…Therefore, to avoid overdependence on these herbicide mixtures and ensure an effective use of multiple-resistant crop technology without enhancing the evolution of multiple herbicide-resistant weeds, an integrated weed management approach for GR giant ragweed or other weed species should be implemented. Recently, integrated weed management approaches involving preplant tillage followed by PRE and/or POST herbicides with multiple modes of action have been developed for the effective management of GR giant ragweed in maize and soybean (Ganie et al, 2016, 2017). Future studies should consider the evaluation of these herbicide mixtures for the control of other prominent GR weed species including common ragweed, common waterhemp, horseweed, kochia ( Kochia scoparia L.), and Palmer amaranth in Nebraska.…”

Section: Resultsmentioning

confidence: 99%

“…Management of giant ragweed has become complicated due to its extended emergence pattern in the eastern maize belt of the United States (Schutte et al, 2008, 2012) and due to the evolution of giant ragweed biotypes resistant to ALS-inhibitors and/or glyphosate in the Midwestern United States (Johnson et al, 2006; Norsworthy et al, 2010, 2011; Jhala et al, 2014; Kaur et al, 2014). Nevertheless, effective integrated management options for GR giant ragweed based on preplant tillage followed by PRE and/or POST applications of herbicide-mixtures have been reported in maize and soybean (Ganie et al, 2016, 2017). Recent research in Nebraska has reported that giant ragweed is sensitive to synthetic auxin herbicides and can be effectively controlled by a preplant application of 2,4-D (Jhala et al, 2014; Kaur et al, 2014; Ganie et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Interaction of 2,4-D or Dicamba with Glufosinate for Control of Glyphosate-Resistant Giant Ragweed (Ambrosia trifida L.) in Glufosinate-Resistant Maize (Zea mays L.)

Ganie

Jhala

2017

Front. Plant Sci.

View full text Add to dashboard Cite

Glyphosate-resistant (GR) giant ragweed is a problematic broadleaf weed in crops including maize and soybean in the Midwestern United States. Commercialization of crops with 2,4-D or dicamba and glufosinate resistance will allow post-emergence (POST) applications of these herbicides. Therefore, information is needed on how 2,4-D/dicamba will interact with glufosinate in various rate combinations. The objectives of this study were to evaluate the interaction of glufosinate plus 2,4-D and/or dicamba for control of GR giant ragweed, and to determine their effect on GR giant ragweed density, biomass, maize injury, and yield. Field experiments were conducted in 2013 and 2014 in a field infested with GR giant ragweed in Nebraska, United States. The treatments included POST applications of glufosinate (450 or 590 g ai ha-1), 2,4-D, or dicamba at 280 or 560 g ae ha-1 applied alone and in tank-mixtures in glufosinate-resistant maize. The results showed that dicamba applied alone resulted in 56 to 62% and 73 to 83% control at 14 and 28 days after treatment (DAT), respectively, and ≥95% control at 60 DAT or at harvest compared to 17 to 30% and 57 to 73% control with 2,4-D applied alone at 280 and 560 g ai ha-1, respectively. Glufosinate tank-mixed with 2,4-D and/or dicamba consistently provided ≥89% control of GR giant ragweed, except that control with glufosinate plus 2,4-D varied from 80 to 92% at 60 DAT and at harvest. The comparison between the observed and expected control (determined by Colby’s equation) suggested an additive interaction between glufosinate and 2,4-D or dicamba for control of GR giant ragweed. Contrast analysis also indicated that GR giant ragweed control with glufosinate plus 2,4-D or dicamba was either consistently higher or comparable with individual herbicides excluding 2,4-D applied alone. Herbicide programs, excluding 2,4-D at 280 g ae ha-1, resulted in ≥80% reduction in GR giant ragweed density. Tank-mixing glufosinate with 2,4-D or dicamba showed an additive effect and will be an additional tool with two effective modes of action for the management of GR giant ragweed in maize.

show abstract

“…In its native habitats, giant ragweed generally occurs in early-successional and disturbed sites with moist soils (Bassett & Crompton, 1982), although it also occurs in drier upland sites (Regnier et al, 2016). Giant ragweed is also a problematic agricultural weed that causes substantial crop losses when not controlled early in the season (Barnett & Steckel, 2013;Ganie et al, 2017;Harrison, Regnier, Schmoll, & Webb, 2001;Webster, Loux, Regnier, & Harrison, 1994) and that has been found to have multiple instances of herbicide resistance (Heap, 2018). It has been a management concern for farmers in the Eastern Corn Belt for at least the past 30 years, but more recently it has been undergoing range expansion in both agricultural and successional habitats farther west and north into the Great Plains where the climate is drier and cooler and where historical agricultural practices differ (Regnier et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

A mosaic of phenotypic variation in giant ragweed (Ambrosia trifida): Local‐ and continental‐scale patterns in a range‐expanding agricultural weed

Hovick

McArdle

Harrison

et al. 2018

Evolutionary Applications

View full text Add to dashboard Cite

Spatial patterns of trait variation across a species' range have implications for population success and evolutionary change potential, particularly in range‐expanding and weedy species that encounter distinct selective pressures at large and small spatial scales simultaneously. We investigated intraspecific trait variation in a common garden experiment with giant ragweed (Ambrosia trifida), a highly variable agricultural weed with an expanding geographic range and broad ecological amplitude. Our study included paired populations from agricultural and natural riparian habitats in each of seven regions ranging east to west from the core of the species' distribution in central Ohio to southeastern Minnesota, which is nearer the current invasion front. We observed trait variation across both large‐ and small‐scale putative selective gradients. At large scales, giant ragweed populations from the westernmost locations were nearly four times more fecund and had a nearly 50% increase in reproductive allocation compared to populations from the core. The degree of surface texture on fruits also declined from east to west. Greater fecundity in the west represents a putative trade‐off between fruit size and fruit number across the study region, although no such trade‐off was found across individual plants. This pattern may effectively result in greater propagule pressure closer to the invasion front. At smaller spatial scales, plants from agricultural populations emerged later and were smaller than plants from riparian populations. However, because plants from agricultural populations allocated more biomass to reproduction, total fecundity did not differ across habitats. Our emergence data are consistent with previous observations showing delayed emergence in agricultural compared to natural populations; thus evolutionary change may be predictable as giant ragweed continues spreading into agricultural fields throughout North America. These shifts in life‐history strategy apparently bear no fecundity cost, suggesting that giant ragweed's success can be attributed at least in part to its substantial adaptive potential.

show abstract

An integrated approach to control glyphosate‐resistant Ambrosia trifida with tillage and herbicides in glyphosate‐resistant maize

Cited by 29 publications

References 33 publications

Giant Ragweed Emergence Pattern Influenced by Spring Tillage Timing in Minnesota

Giant Ragweed Emergence Pattern Influenced by Spring Tillage Timing in Minnesota

Interaction of 2,4-D or Dicamba with Glufosinate for Control of Glyphosate-Resistant Giant Ragweed (Ambrosia trifida L.) in Glufosinate-Resistant Maize (Zea mays L.)

A mosaic of phenotypic variation in giant ragweed (Ambrosia trifida): Local‐ and continental‐scale patterns in a range‐expanding agricultural weed

Contact Info

Product

Resources

About