Decay and discoloration of sugar maple,
Ohman, John H., 1931-
Decay and discoloration of sugar maple, by John H. Ohman. - [Washington, U.S. Govt. Print. Off.] 1968. - folder (8 p.) illus. 24 cm.
Caption title.
Bibliography: p. 6.
agr68000141
Sugar maple--Wounds and injuries.
Acer saccharum.
Trees--Decay.
A423.9 F764 no. 110
Decay and discoloration of sugar maple, by John H. Ohman. - [Washington, U.S. Govt. Print. Off.] 1968. - folder (8 p.) illus. 24 cm.
Caption title.
Bibliography: p. 6.
agr68000141
Sugar maple--Wounds and injuries.
Acer saccharum.
Trees--Decay.
A423.9 F764 no. 110