Giant Ragweed (<i>Ambrosia trifida</i>) Seed Production and Retention in Soybean and Field Margins

Goplen, Jared J.; Becker, R. B.; Coulter, Jeffrey A.; Breitenbach, Fritz R.; Behnken, Lisa M.; Johnson, Gregg A.; Gunsolus, Jeffrey L.

doi:10.1614/wt-d-15-00116.1

Cited by 33 publications

(40 citation statements)

References 26 publications

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“…High seed‐retention levels of Palmer amaranth were also reported in a survey in soybean crops across five states (Arkansas, Illinois, Missouri, Nebraska and Tennessee) where, on average 95–99% of seed production was retained at soybean maturity . High levels of seed retention (80%) have also been reported for giant ragweed ( Ambrosia trifida L.) at soybean harvest in Minnesota …”

Section: North American Soybean Cropping Systemsmentioning

confidence: 54%

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Opportunities and challenges for harvest weed seed control in global cropping systems

Walsh

Broster

Schwartz-Lazaro

et al. 2018

Pest Management Science

111

140

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The opportunity to target weed seeds during grain harvest was established many decades ago following the introduction of mechanical harvesting and the recognition of high weed-seed retention levels at crop maturity; however, this opportunity remained largely neglected until more recently. The introduction and adoption of harvest weed seed control (HWSC) systems in Australia has been in response to widespread occurrence of herbicide-resistant weed populations. With diminishing herbicide resources and the need to maintain highly productive reduced tillage and stubble-retention practices, growers began to develop systems that targeted weed seeds during crop harvest. Research and development efforts over the past two decades have established the efficacy of HWSC systems in Australian cropping systems, where widespread adoption is now occurring. With similarly dramatic herbicide resistance issues now present across many of the world's cropping regions, it is timely for HWSC systems to be considered for inclusion in weed-management programs in these areas. This review describes HWSC systems and establishing the potential for this approach to weed control in several cropping regions. As observed in Australia, the inclusion of HWSC systems can reduce weed populations substantially reducing the potential for weed adaptation and resistance evolution. © 2017 Society of Chemical Industry.

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Section: North American Soybean Cropping Systemsmentioning

confidence: 54%

“…30 High levels of seed retention (80%) have also been reported for giant ragweed (Ambrosia trifida L.) at soybean harvest in Minnesota. 36…”

Section: Seed Retention Of Dominant Weedsmentioning

confidence: 99%

Opportunities and challenges for harvest weed seed control in global cropping systems

Walsh

Broster

Schwartz-Lazaro

et al. 2018

Pest Management Science

111

140

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“…Palmer amaranth is known to produce an average of 60,221 ± 21,991 seeds plant −1 in soybean production (Schwartz et al, 2016b), and other studies have shown Palmer amaranth to produce upward of 600,000 seeds plant −1 in the absence of interference (Keeley et al, 1987). Goplen et al (2016) showed that giant ragweed retained 80% of its seed at the time of soybean harvest, meaning that its addition to the soil seedbank could be substantially reduced through use of the iHSD. Additional weed species have been examined for seed retention at harvest in other cropping systems.…”

Section: Resultsmentioning

confidence: 99%

“…plant −1 in the absence of interference (Keeley et al, 1987). Goplen et al (2016) showed that giant ragweed retained 80% of its seed at the time of soybean harvest, meaning that its addition to the soil seedbank could be substantially reduced through use of the iHSD. Additional weed species have been examined for seed retention at harvest in other cropping systems.…”

Section: And Included Both Broadleaf and Grass Species Thatmentioning

confidence: 99%

Efficacy of the Integrated Harrington Seed Destructor on Weeds of Soybean and Rice Production Systems in the Southern United States

Schwartz-Lazaro

Norsworthy

Walsh³

et al. 2017

Crop Science

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Herbicide‐resistant weeds affect every major cropping system today. Worldwide, there are 47 and 51 confirmed cases of herbicide‐resistant weed populations in soybean [Glycine max (L.) Merr.] and rice (Oryza sativa L.) production systems, respectively. Alternatives to herbicides are necessary to help combat herbicide‐resistant weeds. The integrated Harrington Seed Destructor (iHSD) has been developed to destroy weed seeds during crop harvest but has yet to be tested on weeds in soybean or rice. Thus, the objective of this research was to determine the effectiveness of the iHSD in soybean and rice and to evaluate any limitations. Three experiments were conducted using a stationary iHSD mill. First, the efficacy of the iHSD was evaluated on weed seeds incorporated into soybean residue or rice chaff. Second, varying soybean chaff feeding rates were tested to determine the amount that could be processed without interfering with weed seed destruction. Third, varying soybean chaff moisture levels were tested to determine any limitations that high moisture content may have on the iHSD. The iHSD demonstrated high weed seed destruction efficacy (<1% survival) for 11 of the 12 weed species of soybean. Common cocklebur (Xanthium strumarium L.) seed had 3% survival. In rice, <1% survival was observed in all weed species. The soybean feeding rate and moisture experiments yielded <1% survival across all treatments. These results show that the use of the iHSD can be highly effective in soybean and rice production for reducing inputs to the soil seedbank. These studies highlight the promising seed destruction potential of the iHSD but also demonstrate opportunities for further research evaluating the iHSD as a combine‐fitted system operating under commercial scale production fields.

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“…Additionally, wheat allows the use of herbicides with alternative mechanisms of action that are more effective against herbicide-resistant populations of giant ragweed. In the event of weed escapes, wheat is harvested prior to giant ragweed seed production (Goplen et al 2016), preventing replenishment of the seedbank and allowing time for multiple mechanical and chemical weed control options following wheat harvest.…”

mentioning

confidence: 99%

Seedbank Depletion and Emergence Patterns of Giant Ragweed (Ambrosia trifida) in Minnesota Cropping Systems

Goplen¹,

Becker²,

Coulter³

et al. 2016

Weed Sci

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In the midwestern United States, biotypes of giant ragweed resistant to multiple herbicide biochemical sites of action have been identified. Weeds with resistance to multiple herbicides reduce the utility of existing herbicides and necessitate the development of alternative weed control strategies. In two experiments in southeastern Minnesota, we determined the effect of six 3 yr crop-rotation systems containing corn, soybean, wheat, and alfalfa on giant ragweed seedbank depletion and emergence patterns. The six crop-rotation systems included continuous corn, soybean-corn-corn, corn-soybean-corn, soybean-wheat-corn, soybean-alfalfa-corn, and alfalfa-alfalfa-corn. The crop-rotation system had no effect on the amount of seedbank depletion when a zero-weed threshold was maintained, with an average of 96% of the giant ragweed seedbank being depleted within 2 yr. Seedbank depletion occurred primarily through seedling emergence in all crop-rotation systems. However, seedling emergence tended to account for more of the seedbank depletion in rotations containing only corn or soybean compared with rotations with wheat or alfalfa. Giant ragweed emerged early across all treatments, with on average 90% emergence occurring by June 4. Duration of emergence was slightly longer in established alfalfa compared with other cropping systems. These results indicate that corn and soybean rotations are more conducive to giant ragweed emergence than rotations including wheat and alfalfa, and that adopting a zero-weed threshold is a viable approach to depleting the weed seedbank in all crop-rotation systems.

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Giant Ragweed (Ambrosia trifida) Seed Production and Retention in Soybean and Field Margins

Cited by 33 publications

References 26 publications

Opportunities and challenges for harvest weed seed control in global cropping systems

Opportunities and challenges for harvest weed seed control in global cropping systems

Efficacy of the Integrated Harrington Seed Destructor on Weeds of Soybean and Rice Production Systems in the Southern United States

Seedbank Depletion and Emergence Patterns of Giant Ragweed (Ambrosia trifida) in Minnesota Cropping Systems

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