The corn leaf-aphis and corn root-aphis
Subtitle: By F.M. Webster
Series: U.S. Dept. of Agriculture. Bureau of Entomology. Circular -- 86
Publisher: Govt. Print. Off.
Published: 1907
Place of publication: Washington
Language: eng
Number of pages: 13
Subjects: Corn root-aphis
Notes: Access to portions of this material may be restricted.