A short discussion of some scales affecting shade trees and hardy shrubs
Contributors: United States. Bureau of Entomology and Plant Quarantine
Edition: Rev. Nov. 22, 1950.
Series: Forest entomology brief -- 70; Forest entomology brief -- 70.
Publisher: U.S. Department of Agriculture, Bureau of Entomology
Published: 1950
Place of publication: Washington, D.C
Language: eng
Subjects: Scale insects; Control; Diseases and pests; Euonymus scale; Shade trees