Giant ragweed (<i>Ambrosia trifida</i>L.) control in corn

SoltaniNader,; ShropshireChristy,; SikkemaPeter,

doi:10.4141/cjps2010-004

Cited by 19 publications

(26 citation statements)

References 11 publications

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“…Reference [17] similarly reported unacceptable giant ragweed control of 9 to 52% 8 WAA with atrazine applied PP in corn. While the current study demonstrated good control for glyphosate plus mesotrione and atrazine applied PP, reference [18] reported only GR giant ragweed suppression from the same treatment.…”

Section: Preplant Tank-mixesmentioning

confidence: 99%

“…In other studies, reference [17] evaluated control of giant ragweed using various POST herbicides in corn and found dicamba/atrazine most effective, ranging from 87% to 94%, while atrazine control was as low as 46%. In dicamba-tolerant soybean, up to 100% control of GR giant ragweed has been reported for dicamba applied POST [19] and for sequential early-and late-POST dicamba applications [20].…”

Section: Postemergence Tank-mixesmentioning

confidence: 99%

“…While the current study demonstrated good control for glyphosate plus mesotrione and atrazine applied PP, reference [18] reported only GR giant ragweed suppression from the same treatment. Furthermore, reference [17] reported moderate, yet variable, control of giant ragweed ranging from 33% to 80% from mesotrione plus atrazine. In dicamba-tolerant soybean, up to 100% control of GR giant ragweed 8 WAA has been reported from dicamba PP application [19].…”

Section: Preplant Tank-mixesmentioning

confidence: 99%

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Preplant and Postemergence Control of Glyphosate-Resistant Giant Ragweed in Corn

Belfry¹,

Sikkema²

2015

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Glyphosate-resistant (GR) giant ragweed has recently been identified in southwestern Ontario and has the potential to be a significant problem for regional corn producers. Eight field trials [four with preplant (PP) and four with postemergence (POST) herbicides] were conducted from 2013 to 2014 on various Ontario farms infested with GR giant ragweed to determine the efficacy of PP and POST tank-mixes in corn. Glyphosate tank-mixed with atrazine, dicamba, dicamba/atrazine, mesotrione plus atrazine, flumetsulam, isoxaflutole plus atrazine, saflufenacil/dimethenamid-P, Smetolachlor/atrazine and rimsulfuron applied PP provided up to 54%, 95%, 93%, 95%, 40%, 89%, 91%, 50% and 93% control of GR giant ragweed and reduced dry weight 69%, 100%, 99%, 100%, 30%, 92%, 98%, 66% and 99%, respectively. POST application of glyphosate alone and tankmixed with 2,4-D ester, atrazine, dicamba, dicamba/diflufenzopyr, dicamba/atrazine, bromoxynil plus atrazine, prosulfuron plus dicamba, mesotrione plus atrazine, topramezone plus atrazine, tembotrione/thiencarbazone-methyl and glufosinate provided up to 31%, 84%, 39%, 94%, 89%, 86%, 83%, 78%, 72%, 43%, 63% and 58% GR giant ragweed and reduced dry weight 55%, 99%, 72%, 99%, 99%, 98%, 96%, 96%, 93%, 89%, 91% and 95%, respectively. In general, PP control of GR giant ragweed was greater than POST applied herbicides evaluated. Based on these results, glyphosate tank-mixes containing dicamba or mesotrione plus atrazine applied PP, and dicamba applied POST will provide the most consistent control of GR giant ragweed in corn.

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Section: Preplant Tank-mixesmentioning

confidence: 99%

Section: Postemergence Tank-mixesmentioning

confidence: 99%

Section: Preplant Tank-mixesmentioning

confidence: 99%

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Preplant and Postemergence Control of Glyphosate-Resistant Giant Ragweed in Corn

Belfry¹,

Sikkema²

2015

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“…While biotypes of Texas panicum expressing resistance to glyphosate have not been reported, biotypes of common ragweed resistant to glyphosate have been documented in several geographic regions of the US [15]. Dicamba alone or in combination with other herbicides can be effective in controlling common ragweed and other broadleaf weeds [16,17]. Dicamba and glufosinate applied to small common ragweed can control this weed effectively and can serve as alternatives to atrazine and glyphosate in corn [8,[17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Weed Control and Corn (Zea mays) Response to Planting Pattern and Herbicide Program with High Seeding Rates in North Carolina

Williams

Heiniger

Everman

et al. 2014

Advances in Agriculture

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Effective weed control in corn (Zea mays L.) is important to optimize yield. Concern over environmental impact of atrazine and selection for glyphosate resistance has increased the need to develop alternative strategies that use herbicides other than atrazine and glyphosate and appropriate cultural practices to control weeds. Research was conducted during 2011 and 2012 to determine weed and corn response to herbicide programs containing dicamba, glufosinate, and glyphosate applied postemergence alone or with atrazine in single-and twin-row planting patterns. Planting pattern had no effect on common ragweed (Ambrosia artemisiifolia L.) and Texas panicum (Panicum texanum L.) population and did not interact with herbicide program. Effective weed control hastened maturity in some but not all instances. Under weed-free conditions, corn grain yield was higher in 5 of 7 trials when planted in twin rows versus single rows at equivalent corn populations (141,000 plants ha −1 ). These results suggest that while planting pattern may not impact weed control dramatically, planting corn in twin rows may be an effective alternative to single-row planting patterns because of increased yield under high corn populations.

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“…Glyphosate plus saflufenacil or saflufenacil/dimethenamid-p provided 46% to 91% and 47% to 93% control, respectively ( Table 4). Soltani et al [16] reported 45% to 80% and 53% to 63% control with saflufenacil at 75 g a.i. ha −1 and saflufenacil/dimethena- , respectively applied alone 4 weeks after corn emergence.…”

Section: Enhanced Burndownmentioning

confidence: 99%

Control of glyphosate resistant giant ragweed in soybean with preplant herbicides

Follings¹,

Soltani²,

Robinson³

et al. 2013

Self Cite

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Giant ragweed was the first glyphosate resistant weed identified in Canada. It is a very competetive weed in row crop production and has been found to drastically reduce yields of soybean; therefore, control of this competitive weed is essential. The objective of this study was to determine effective control options for glyphosate resistant giant ragweed in soybean with herbicides applied preplant. Eighteen herbicide combinations were evaluated in field studies conducted in 2011 and 2012 at five locations with confirmed glyphosate resistant giant ragweed. Glyphosate plus 2,4-D ester or amitrole provided the best control of glyphosate resistant giant ragweed 4 WAA. Glyphosate plus 2,4-D ester provided 98 to 99% control and was equivalent to the weed free check at all locations. Glyphosate plus amitrole provided 90% to 93% control and was equivalent to the weed free check at 4 of 5 locations. Herbicides providing residual activity provided variable control across all locations. Of the herbicides with residual activity evaluated, glyphosate plus linuron provided the best control of glyphosate resistant giant ragweed; however, control was inconsistent across locations and years. Glyphosate plus linuron provided 23% to 99% control and was equal to the weed free check at one location 8 WAA.

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Giant ragweed (Ambrosia trifidaL.) control in corn

Cited by 19 publications

References 11 publications

Preplant and Postemergence Control of Glyphosate-Resistant Giant Ragweed in Corn

Preplant and Postemergence Control of Glyphosate-Resistant Giant Ragweed in Corn

Weed Control and Corn (Zea mays) Response to Planting Pattern and Herbicide Program with High Seeding Rates in North Carolina

Control of glyphosate resistant giant ragweed in soybean with preplant herbicides

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