Biodiversity Heritage Library
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Subject "Corn root-aphis"
The corn leaf-aphis and corn root-aphis / F. M. Webster.
By: Webster, F. M. (Francis Marion), - United States. Bureau of Entomology. - United States. Dept. of Agriculture.
Publication info: Washington, D.C. :U.S. Dept. of Agriculture, Bureau of Entomology,1907.
Holding Institution: U.S. Department of Agriculture, National Agricultural Library
Subjects: Agricultural pests Aphids Aphis Corn Corn root-aphis Diseases and pests
The corn root-aphis /
By: Flint, W. P. - Illinois. Natural History Survey Division.
Publication info: Urbana, Ill. :Illinois Natural History Survey,1919.
Holding Institution: University Library, University of Illinois Urbana Champaign
Subjects: Corn Corn root-aphis Diseases and pests