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    • Journal of Range Management, Volume 40 (1987)
    • Journal of Range Management, Volume 40, Number 4 (July 1987)
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    Application of Herbicides on Rangelands with a Carpeted Roller: Timing of Treatment in Dense Stands of Honey Mesquite

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    Author
    Mayeux, H. S.
    Issue Date
    1987-07-01
    Keywords
    application timing
    2,4,5-T
    clopyralid
    evaluation
    pesticide application
    Prosopis glandulosa
    weed control
    chemical control
    plant density
    picloram
    Texas
    rangelands
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    Citation
    Mayeux, H. S. (1987). Application of herbicides on rangelands with a carpeted roller: Timing of treatment in dense stands of honey mesquite. Journal of Range Management, 40(4), 348-352.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/645133
    DOI
    10.2307/3898736
    Additional Links
    https://rangelands.org/
    Abstract
    Several herbicides were evaluated for control of honey mesquite (Prosopis glandulosa Torr.) when applied with a tractor-mounted carpeted roller. Experiments were placed in stands with relatively high honey mesquite densities (2,850 to 4,930 plants/ha). An ester of 2,4,5-T was ineffective at concentrations ranging from 3 to 240 g/L when applied monthly from April through September. Equal-ratio mixtures of 2,4,5-T and picloram provided up to 80% mortality (root-kill) when applied at a total concentration of 24 g/L in June, but did not control honey mesquite if applied in September. Mortality obtained with picloram applied alone in June as a 12 g/L solution varied with year and location from 42 to 61%. Picloram provided 61 to 91% mortality at a concentration of 60 g/L when applied in June, and up to 99% mortality when applied as a 120 g/L solution. Picloram was highly effective when applied in July and August in a year of favorable growing conditions, providing 94 and 96% mortality as 60 g/L solutions, respectively. Mortality was reduced to a maximum of 79% when picloram was applied from April through September in a drought year. Clopyralid and a 1:1 mixture of picloram and clopyralid were usually equal or superior to picloram in effectiveness.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/3898736
    Scopus Count
    Collections
    Journal of Range Management, Volume 40, Number 4 (July 1987)

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