FOR some reason unknown to me (but probably owing to meteorological conditions pertaining to this season or the last) the potato fungus began its ravages this summer a month or six weeks earlier than usual. It not only appeared out of season, but it came in a different form from anything within the memory of the younger botanists of the present generation. It is considered probable that the present condition of the disease is similar with that long ago known as “the curl,” a pest known a considerable time before Peronospora infestans, Mont., was described as European.
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Microbes and Infection (2002)
The Importance of Archival and Herbarium Materials in Understanding the Role of Oospores in Late Blight Epidemics of the Past
Occurrence of the rare A2 mating type of Phytophthora infestans on imported Egyptian potatoes and the production of sexual progeny with A1 mating types from the UK
Plant Pathology (1985)