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    Author(s): James D. Haywood; Richard Hallman
    Date: 1992
    Source: Tree Planters' Notes 43(2):36-38; 1992.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (465 KB)

    Description

    The ability of spray booms and carpet-covered roller-wipers mounted on four-wheelers to apply herbicides on pine plantings sites was tested with the following treatments: spray boom application of 0.31 kg (0.69 lb) acid equivalent glyphosate with 0.08 kg (0.18 lb) active ingredient sulfometuron in 215 liters of water/ha (23 gallons/acre) and roller-wiping the vegetation with a solution of 1% glyphosate and 0.1% sulfometuron in water. Both application methods controlled herbaceous plants, but the spray boom was more effective than the roller-wiper: weed control averaged 94% on sprayed plots and 63% on wiped plots compared to untreated controls. Appartently, unless modified, the roller assembly is not a practical alternative to the spray boom unless drift must be kept minimal.

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    Citation

    Haywood, James D.; Hallman, Richard 1992. Comparing a spray boom to a roller-wiper system for a single-passenger four-wheeler. Tree Planters'' Notes 43(2):36-38; 1992.

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