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    Author(s): William E. Eck; David W. McGill
    Date: 2007
    Source: e-Gen. Tech. Rep. SRS–101. U.S. Department of Agriculture, Forest Service, Southern Research Station: 163-168 [CD-ROM].
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (201 KB)

    Description

    Tree-of-heaven (Ailanthus altissima [Mill.] Swingle) is a non-native invasive plant that is spreading throughout much of the U.S. In this study, efficacy of the herbicides triclopyr and imazapyr was tested using injection and basal bark treatment methods. No treatment was 100 percent effective. Only triclopyr injection was significantly different from other treatments, providing the least control. Both injection and basal spray treatments with imazapyr affected untreated neighbor stems, probably through root connections and/or root leaking.

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    Citation

    Eck, William E.; McGill, David W. 2007. Testing the efficacy of the triclopyr and imazapyr using two application methods for controlling tree-of-heaven along a West Virginia highway. e-Gen. Tech. Rep. SRS–101. U.S. Department of Agriculture, Forest Service, Southern Research Station: 163-168 [CD-ROM].

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