Relative importance of root grafts and bark beetles to the spread of Dutch elm disease
By: R.A. Cuthbert, W.N. Cannon, and J.W. Peacock.
Series: Research note NE -- 206.
Publisher: Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1975
Place of publication: Upper Darby, Pa
Language: eng
Notes: Includes bibliographical references (p. 4).