Ayyangar C Rangaswami Leaf spot and blight disease of onions caused by alternaria palandui nov. sp. Ayyangar C Rangaswami - Calcutta Central publication branch India 1928 - 14p cm. - Agricultural research Institute, Pusa. Bulletin no.; 179 . Standard No.: 26387 Source: Textual Subjects--Topical Terms: AGRICULTUREONION Dewey Class. No.: J321:4, F8