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Observations on two insect pests
E. A. Popenoe · Experiment Station, Kansas State Agricultural College
39 sayfa · 1888
Apple-tree borers / Insect pests
Some scale-insects upon Kansas grasses
E. A. Popenoe, P. J. Parrott · Experiment Station, Kansas State Agricultural College
146 sayfa · 1900
Scale insects / Insect-plant relationships / Grasses / Diseases and pests