Engraver bark beetles attacking elm trees and associated with the Dutch elm disease
Subtitle: a memorandum for technical workers assigned to Dutch elm disease control operations
By: prepared by William Middleton ...
Published: 1934
Place of publication: [Place of publication not identified]
Language: eng
Subjects: Forestry; Plant pests; Arthropod pests; Plant pathogenic fungi; Plant health; Fungal diseases of plants