Irving, F.D., (1958), "Killing Cull Black Oaks with Ammate, 2,4,5-T and Mechanical Girdling", Minnesota Forestry Notes 71, School of Forestry, University of Minnesota
Minnesota Forestry Notes
Published as Scientific Journal Paper Series No. 3994 of the Minnesota Agricultural Experiment Station.
Irving, Frank D..
Killing Cull Black Oaks with Ammate, 2,4,5-T and Mechanical Girdling.
St. Paul, Minn. : School of Forestry, University of Minnesota.
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