Sakai, Seiroku2017-06-012017-06-01http://hdl.handle.net/2097/35709I studied the soybean aphid Aphis glycines Matsumura, which is considered a pest on soybeans, in a two-year period starting November of 1946. In my research, I identified 5 related species classified according to Backer: apple aphid (Aphis pome), Oleander [Nerium indicum] aphid (Aphis nerii), cotton aphid (Aphis gossypii), beef-steak plant aphid (Aphis perillae), and Japanese chaff flower [Achyranthes japonica] aphid Aphis sp.Originating text in Japanese.Citation: Sakai, Seiroku. (1949). Study on the Relation Between Soybean Varieties and Multiplication of Soybean Aphids. Oyo-Kontyu, 5(3), 125-126.engCopyright for this item remains with the original copyright holder. Permission was obtained from the copyright holder to translate into English, where applicable, and to host the full-text content.Text