Winter Injection of 2,4-D and Tordon 101 for Hardwood Control

W. Henry McNab; Elbert L. Moyer

Treesearch

Winter Injection of 2,4-D and Tordon 101 for Hardwood Control

Informally Refereed

Authors:

W. Henry McNab, Elbert L. Moyer

Year:

1969

Type:

Research Note

Station:

Southern Research Station

Source:

Res. Note SE-115. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 2 p.

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Abstract

During the winter of 1965-66, concentrates of Tordon 101 and 2,4-D amine were injected at 1-, 3-, and 5-inch intervals around the stems of southern red oak (Quercus falcata Michx.), sweetgum (Liquidambar styraciflua L.), hickory (Carya spp.), and flowering dogwood (Cornus florida L.). Tordon 101 produced higher mortality than 2,4-D amine in all species, although with hickory the difference may have occurred by chance. Tordon 101 killed over 90 percent of the red oaks and sweetgum at 5-inch spacing and more than 50 percent of the hickory and 40 percent of the dogwood at 3-inch spacing.

Citation

McNab, W. Henry; Moyer, Elbert L., Jr. 1969. Winter Injection of 2,4-D and Tordon 101 for Hardwood Control. Res. Note SE-115. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 2 p.