Differential Response of a Virginia Common Lambsquarters (Chenopodium Album) Collection to Glyphosate

Hite, Grace A.; King, Steven R.; Hagood, Edward S.; Holtzman, Golde I.

doi:10.1614/ws-07-114.1

Cited by 13 publications

(12 citation statements)

References 28 publications

(56 reference statements)

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“…Lambsquarters ( Chenopodium album L.) (Hite et al 2008 ), giant ragweed ( Ambrosia trifi da L.) (Westhoven et al 2008 ), fi eld bindweed ( Convolvulus arvensis L.) (DeGennaro and Weller 1984 ;Westwood et al 1997 ), and pitted morningglory ( Ipomoea lacunosa L.) (Stephenson et al 2007 ) populations have also shown variable response to glyphosate.…”

mentioning

confidence: 99%

Testing Methods for Glyphosate Resistance

Shaner

2010

Glyphosate Resistance in Crops and Weeds

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mentioning

confidence: 99%

Testing Methods for Glyphosate Resistance

Shaner

2010

Glyphosate Resistance in Crops and Weeds

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“…Recently in New Zealand, synthetic auxin resistance has been confirmed in populations of C. album (Ghanizadeh andHarrington 2017, Rahman et al 2014). Glyphosate resistance has yet to be confirmed however, C. album is known to have natural tolerance to glyphosate (Hite et al 2008, Kniss et al 2007, Yerka et al 2013.…”

Section: Common Lambsquartermentioning

confidence: 99%

Cultural weed management practices shorten the critical weed-free period for soybean grown in the Northern Great Plains

Rosset

Gulden

2019

Weed Sci

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Soybean [Glycine max (L.) Merr.] has recently become a popular rotational crop in the Canadian Northern Great Plains where herbicide-resistant (HR) soybean cultivars have been widely adopted. Intense reliance on herbicides has contributed to the development of HR weeds in soybean and other crops. Cultural weed management practices reduce the need for herbicides and lower the selection pressure for HR weed biotypes by improving the competitiveness of the crop. The effects of two row spacings, three target densities, and three cultivars on the critical weed-free period (CWFP) in soybean were evaluated as three separate experiments in southern Manitoba. In the row-spacing experiment, soybean grown in narrow rows shortened the CWFP by up to three soybean developmental stages at site-years with increased weed pressure. In the target density experiment, low-density soybean stands lengthened the CWFP by one soybean developmental stage compared with higher-density soybean stands. The effect of soybean cultivar varied among locations, yet tended to be consistent within location over the 2-yr study, suggesting that competitive ability in these soybean cultivars was linked to edaphic and/or environmental factors. Generally, the cultivar with the shortest days to maturity, which also had the shortest stature, consistently had a longer CWFP. Each of these cultural practices were effective at reducing the need for in-crop herbicide applications.

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“…Two of these glyphosate resistant weed species have already Dow AgroSciences LLC become a significant problem for farmers across a large geographic area: Conyza canadensis (Horseweed) infests at least two million hectares of glyphosate tolerant crops in the U.S.; and Amaranthus palmeri (Palmer amaranth) has heavily impacted cotton growers, particularly in the Southeast. In addition, researchers in Virginia have been testing a biotype of common lambsquarters that survived 1.0 lb ae/acre (1120 g ae/ha) glyphosate, and thus appears to have low level resistance to glyphosate (Hite et al, 2008). Weed scientists in Ohio and Indiana have also identified a biotype of common lambsquarters in at least a dozen fields that appears to have low-level glyphosate resistance (Curran et al, 2007).…”

Section: Glyphosate Resistance and Weed Shiftsmentioning

confidence: 99%

Resistance of Enlist^™(AAD-12) Cotton to Glufosinate

Braxton¹,

Richburg²,

York³

et al. 2017

Weed Technol

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Release of InformationDow AgroSciences LLC (DAS) is submitting the information in this petition for deregulation to USDA-APHIS as part of the regulatory process. By submitting this information, DAS does not authorize its release to any third party. If USDA receives a Freedom of Information Act request pursuant to 5 U.S.C., § 552 and 7 CFR Part 1 regarding this information, DAS expects that USDA will provide DAS with a copy of the material proposed to be released and the opportunity to object to the release of any information based on appropriate legal grounds (e.g., responsiveness, confidentiality, and/or competitive concerns). DAS understands that a copy of this information may be made available to the public in a reading room and upon individual request as part of a public comment period. Except in accordance with the foregoing, DAS does not authorize the release, publication or other distribution of this information (including website posting) without prior notice and consent from DAS.© 2013 Dow AgroSciences LLC. All Rights Reserved. This document is property of Dow AgroSciences LLC and is for use by the regulatory authority to which it has been submitted, and only in support of actions requested by Dow AgroSciences. All data and information herein must not be used, reproduced or disclosed to third parties for any other purpose without the written consent of Dow AgroSciences. USDA-APHIS Petition for Nonregulated Status of DAS-8191Ø-7 CottonPage 3 of 214 Dow AgroSciences LLC CertificationThe undersigned certifies that, to the best knowledge and belief of the undersigned, this petition includes all information and views on which to base a determination and that it includes all relevant data and information known to the petitioner, unfavorable as well as favorable, associated with DAS-8191Ø-7 cotton. SummaryDow AgroSciences LLC (herein referred to as "DAS") is submitting a Petition for Determination of Nonregulated Status for DAS-8191Ø-7 cotton. DAS requests from USDA Animal and Plant Health Inspection Service (APHIS) that cotton transformation event DAS-8191Ø-7 and any cotton lines derived from crosses between DAS-8191Ø-7 cotton and conventional cotton or biotechnology-derived cotton granted nonregulated status by APHIS, no longer be considered regulated articles under 7 CFR Part 340.DAS has developed transgenic cotton plants containing aad-12 and pat, which confer tolerance to the herbicides 2,4-dichlorophenoxyacetic acid (2,4-D) and glufosinate. DAS-8191Ø-7 cotton will provide growers with greater flexibility in selection of herbicides for the improved control of economically important weeds; allow an increased application window for effective weed control; and provide an effective weed resistance management solution to the growing incidence of glyphosate resistant weeds.DAS-8191Ø-7 cotton plants have been genetically modified to express aryloxyalkanoate dioxygenase-12 (AAD-12). AAD-12 is an enzyme with an alpha ketoglutarate-dependent dioxygenase activity which results in metabolic inactivation of the herbi...

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Differential Response of a Virginia Common Lambsquarters (Chenopodium Album) Collection to Glyphosate

Cited by 13 publications

References 28 publications

Testing Methods for Glyphosate Resistance

Testing Methods for Glyphosate Resistance

Cultural weed management practices shorten the critical weed-free period for soybean grown in the Northern Great Plains

Resistance of Enlist^™(AAD-12) Cotton to Glufosinate

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Differential Response of a Virginia Common Lambsquarters (Chenopodium Album) Collection to Glyphosate

Cited by 13 publications

References 28 publications

Testing Methods for Glyphosate Resistance

Testing Methods for Glyphosate Resistance

Cultural weed management practices shorten the critical weed-free period for soybean grown in the Northern Great Plains

Resistance of Enlist™(AAD-12) Cotton to Glufosinate

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Product

Resources

About

Resistance of Enlist^™(AAD-12) Cotton to Glufosinate