Black stain root disease of conifers
By: Richard S. Smith and David Graham.
Contributors: Graham, David A.; United States. Forest Service.
Series: Forest pest leaflet ; 145; General technical report NE -- 145.
Publisher: U.S. Dept. of Agriculture, Forest Service
Published: 1975
Place of publication: [Washington]
Language: eng
Subjects: Conifers -- Diseases and pests -- United States.
Notes: Bibliography: p. 4.