Tree condition and mortality following defoliation by the gypsy moth
By: by Robert W. Campbell and Harry T. Valentine.
Contributors: Valentine, Harry T., joint author.
Series: U.S.D.A. Forest Service research paper NE-236
Publisher: U.S. Northeastern Forest Experiment Station
Published: 1972
Place of publication: Upper Darby, Pa
Language: eng
Number of pages: 331
Subjects: Gypsy moth.; Trees -- Diseases and pests.; Defoliation.
Notes: Cover title.