An edition of The spring grain-aphis or so-called "green bug." (1909)
The spring grain-aphis or so-called "green bug."
(Toxoptera graminum Rond.)
By F. M. Webster
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Publish Date
1909
Publisher
U.S. Dept. of Agriculture, Bureau of Entomology
Language
eng
Pages
22
Description:
subjects: Agricultural pests, Grain, Toxoptera, Aphids, Greenbug, Diseases and pests