Abalymov A. A. RussiaSaratovSaratov State University , 83, Astrakhanskaya str., Saratov, 410012, Russia 410010snowman.27@icloud.com Author's articles Biological Properties of Bacteria – Assiociants Aphis Pomi Degeer, 1773 Biological Properties of Bacteria – Assiociants Schizaphis graminum Rondani, 1852