How to identify and control black walnut mycosphaerella leaf spot
By: prepared by Forest Service, North Central Forest Experiment Station
Contributors: North Central Forest Experiment Station (Saint Paul, Minn.)
Publisher: The Station
Published: 1985
Place of publication: St. Paul, MN
Language: eng
Subjects: Leaf spots; Walnut -- United States
Notes: Shipping list no.: 86-303-P