How to indentify septotinia and phyllosticta leaf spots of poplars
Contributors: United States. State and Private Forestry. Northeastern Area; North Central Forest Experiment Station (Saint Paul, Minn.)
Publisher: North Central Forest Experiment Station; NA State & Private Forestry [distributor]
Published: 1980
Place of publication: St. Paul, MN; Broomall, PA
Language: eng
Subjects: Poplar -- Diseases and pests; Phyllosticta -- Identification