The effect of seedbed density on development of Septoria leaf spot on white alder at Humboldt Nursery
By: Susan Frankel, James Nelson
Contributors: Nelson, James; United States. Forest Pest Management
Series: Report -- no. R92-5; Report (United States. Forest Pest Management : Pacific Southwest Region) -- no. 92-5.
Publisher: USDA, Forest Service, Pacific Southwest Region, State and Private Forestry, Forest Pest Management
Published: 1992
Place of publication: San Francisco, Calif.]
Language: eng
Subjects: Alnus incana; Diseases and pests; Septoria; Fungal diseases of plants
Notes: Caption title.

"April 3, 1992."

"3420 Forest Pest Management."

Includes bibliographical references (leaf 4).