How to identify hypoxylon canker of aspen
Contributors: North Central Forest Experiment Station (Saint Paul, Minn.)
Publisher: North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1989
Place of publication: St. Paul, Minn
Language: eng
Subjects: Aspen -- Diseases and pests -- Middle West; Hypoxylon mammatum -- Middle West
Notes: Shipping list no.: 89-355-P