How to identify and control rhabdocline and Swiss needlecasts of Douglas-fir
By: prepared by Forest Service
Contributors: North Central Forest Experiment Station (Saint Paul, Minn.)
Publisher: U.S. Dept. of Agriculture, North Central Forest Experiment Station
Published: 1983
Place of publication: [St. Paul, Minn.]
Language: eng
Subjects: Douglas fir -- Diseases and pests -- United States