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    • Journal of Range Management, Volume 46 (1993)
    • Journal of Range Management, Volume 46, Number 3 (May 1993)
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    Water quality effects on stability and phytotoxicity of picloram and clopyralid

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    Author
    Whisenant, S. G.
    Bovey, R. W.
    Issue Date
    1993-05-01
    Keywords
    spraying
    water hardness
    solutions
    efficacy
    stability
    clopyralid
    Prosopis glandulosa
    brush control
    phytotoxicity
    chemical control
    picloram
    water quality
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    Citation
    Whisenant, S. G., & Bovey, R. W. (1993). Water quality effects on stability and phytotoxicity of picloram and clopyralid. Journal of Range Management, 46(3), 254-256.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644661
    DOI
    10.2307/4002617
    Additional Links
    https://rangelands.org/
    Abstract
    Water quality effects on stability of picloram (4-amino-3,5,6-trichloro-2-pyridinecarboxylic acid) and clopyralid (3,6-dichloro-2-pyridinecarboxylic acid) were evaluated by determining their concentrations in spray mixtures 0, 48, and 168 hours after mixing. Gas chromatography was used to evaluate picloram and clopyralid concentrations in spray solutions mixed with different water sources or buffered water solutions. At 168 hours picloram concentrations in water from La Copita and Midland, Texas, were 11 and 12% lower than at 0-hour and 5 and 6% lower than picloram concentrations in distilled water at 168 hours. Water quality effects on phytotoxicity to honey mesquite (Prosopis glandulosa) were evaluated at 0 and 168 hours after mixing the spray solution. Water quality had no effect on clopyralid phytotoxicity to honey mesquite at either 0 or 168 hours after mixing. Phytotoxicity to honey mesquite was reduced 42% when picloram mixtures were used 168 hours after mixing with water from La Copita. This indicates the potential for reduced phytotoxicity from picloram when prepared spray solutions are not used for 7 days.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4002617
    Scopus Count
    Collections
    Journal of Range Management, Volume 46, Number 3 (May 1993)

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