Title: An annotated list of the important North American forest insects /
Authors: Craighead, Frank C. 1890-1982.; Middleton, William, 1893-; United States.
Publisher: U.S. Dept. of Agriculture,
Year: 1930
Subjects: Trees Diseases and pests.; Forest insects United States Classification.
Abstract: The investigations by the United States Government of the insects affecting forest trees, forest products, and shade trees are centered in the division of forest insects of the Bureau of Entomology. The investigations carried on by the division are grouped for administrative convenience into projects, the most important of which are briefly described in the following paragraphs.
Contents: Government projects relating to forest insects. pp. 1 -- The most important forest insects : Tree-killing bark beetles -- Insects boring in living trees -- Insects affecting forest products -- Insects affecting seeds -- Defoliating insects. pp. 3 -- Literature cited. pp. 23 -- Appendix. pp. 27 -- Index. pp. 28.