Differential susceptibility of 19 white pine species to woolly aphid (Pineus coloradensis)
By: R. J. Hoff and G. I. McDonald.
Contributors: McDonald, G. I.; Intermountain Forest and Range Experiment Station (Ogden, Utah); United States. Forest Service.
Series: USDA Forest Service research note INT ; 225; Research note INT -- 225.
Publisher: Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station
Published: 1977
Place of publication: Ogden Utah
Language: eng
Subjects: Aphids -- North America -- Host plants.; White pine -- Diseases and pests -- North America.
Notes: Issued Aug. 1977.

Bibliography: p. 6.