During the month of August, 1892, my attention was called to a disease of rutabagas, which, at that time, had consumed more than ten per cent of the crop. The disease was spreading rapidly, owing to the favorable conditions of the weather, warmth and moisture. The ground was very moist, owing to frequent rains in July and early August. The disease became so severe that in some patches, by the middle of September, more than half of the crop was destroyed ; it was equally disastrous to some yellow turnips.
Pammel, L. H.
"Bacteriosis of Rutabaga.,"
Bulletin: Vol. 3
, Article 7.
Available at: https://lib.dr.iastate.edu/bulletin/vol3/iss27/7