. Circular. Insects. Circular No. 93, Revised. Issued June 23, 1909. United States Department of Agriculture, BUREAU OF ENTOMOLOGY. L. O. HOWARD, Entomologist and Chief of Bureau. THE SPRING GRAIN-APHIS OR SO-CALLED "GREEN ; (Toxoptera gram inn in Rond.) By F. M. Webster, In Charge of Cereal and Forage-Plant Insect Investigations. The early history in America of the spring grain-aphis (figs. 1-1), which has come to be generally known as the " green bug," was pub- ished in Circular Xo. 85 of this Bureau, and need not be reproduced. Please note that these images are extra
. Circular. Insects. Circular No. 93, Revised. Issued June 23, 1909. United States Department of Agriculture, BUREAU OF ENTOMOLOGY. L. O. HOWARD, Entomologist and Chief of Bureau. THE SPRING GRAIN-APHIS OR SO-CALLED "GREEN ; (Toxoptera gram inn in Rond.) By F. M. Webster, In Charge of Cereal and Forage-Plant Insect Investigations. The early history in America of the spring grain-aphis (figs. 1-1), which has come to be generally known as the " green bug," was pub- ished in Circular Xo. 85 of this Bureau, and need not be reproduced. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Entomology. Washington, Govt. print. off.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectinsects
