Wilson, Louis F.
A guide to insect injury of conifers in the Lake States / Louis F. Wilson - Washington : USDA , 1977 - vi, 218p. : ill. ; 24 cm. - USDA agriculture handbook .
Includes bibliographical references
Insects
Diseases and pests
Identification
Conifers
632.7 / WIL
A guide to insect injury of conifers in the Lake States / Louis F. Wilson - Washington : USDA , 1977 - vi, 218p. : ill. ; 24 cm. - USDA agriculture handbook .
Includes bibliographical references
Insects
Diseases and pests
Identification
Conifers
632.7 / WIL