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    Author(s): Robert H. Ruth; Carl M. Berntsen
    Date: 1956
    Source: PNW Old Series Research Notes No. 128, p. 1-6
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Northwest Research Station
    PDF: Download Publication  (1.2 MB)


    A key to better restocking of conifers on recently cutover forest land in the Oregon Coast Range is the elimination of competition from red alder (Alnus rubra Bong.). This can be readily accomplished with a foliage spray containing 2,4-dichlorophenoxyacetic acid (2.4-D). Tests in 1954 and 1955 on the Cascade Head Experimental Forest have shown that control is also possible using a basal application of 2,4, 5-trichlorophenoxyacetic acid (2,4, 5-T).

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Ruth, Robert H.; Berntsen, Carl M. 1956. Chemical basal treatment to control red alder. PNW Old Series Research Notes No. 128, p. 1-6

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