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    • Journal of Range Management, Volume 33 (1980)
    • Journal of Range Management, Volume 33, Number 6 (November 1980)
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    Control of Bitterweed with Herbicides

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    Author
    Ueckert, D. N.
    Scifres, C. J.
    Whisenant, S. G.
    Mutz, J. L.
    Issue Date
    1980-11-01
    
    Metadata
    Show full item record
    Citation
    Ueckert, D. N., Scifres, C. J., Whisenant, S. G., & Mutz, J. L. (1980). Control of bitterweed with herbicides. Journal of Range Management, 33(6), 465-469.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/646310
    DOI
    10.2307/3898587
    Additional Links
    https://rangelands.org/
    Abstract
    Herbicide 2,4-D was less effective for bitterweed control when applied at air temperatures below 14 degrees C compared to applications at 22 degrees C even when soil water was adequate for active plant growth. There was no difference in bitterweed control whether the ester or amine formulations of 2,4-D were used. At 22° C air temperature, 1.12 kg/ha of 2,4-D + dicamba (3:1), picloram, or 2,4,5-T + picloram (1:1) did not improve short-term control (36 to 182 days) of bitterweed compared to 2,4-D alone at the same rate. However, at 14 degrees C temperature or when bitterweed were in advanced phenological states (75% with inflorescences), these herbicides provided excellent short-term bitterweed control whereas 2,4-D was inconsistent. Mixtures of dicamba with 2,4-D slightly improved residual bitterweed control, compared to the same rate of 2,4-D alone. Picloram at 0.56 to 1.12 kg/ha controlled 60 to 100% of the bitterweed populations for a year or more following applications in winter or spring. Tebuthiuron at 0.56 to 1.12 kg/ha was not as effective as 2,4-D at 1.12 kg/ha relative to initial bitterweed control, but provided excellent residual control after 1 year following winter application.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/3898587
    Scopus Count
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    Journal of Range Management, Volume 33, Number 6 (November 1980)

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