Black bark as an indicator of bird peck defect in sugar maple
By: John H. Ohman and K.J. Kessler, Jr
Contributors: Kessler, Kenneth J.
Series: U.S. Forest Service research paper LS -- 14
Publisher: Lake States Forest Experiment Station, Forest Service, U.S. Department of Agriculture
Published: 1964
Place of publication: [St. Paul, Minn.]
Language: eng
Subjects: Sugar maple; Diseases and pests; Bird pests
Notes: Cover title.

Bibliography: p. 7-8.