1. Cuppels, D. and Kelman, A. 1974. Evaluation of selective media for isolation of soft-rot bacteria from soil and plant tissue. Phytopathology 64:468–475.
2. Davidson, R. S. 1948. Factors affecting the development of bacterial soft rot of potato tuber initials. Phytopathology 38:673–687.
3. De Boer, S. H., Cuppels, D. and Kelman, A. 1975. Populations of pectolyticErwinia spp. in the rhizosphere of potato plants. Annu. Proc. Am. Phytopathol. Soc. for 1974 1: In press.
4. De Boer, S. H. and Kelman, A. 1975. Improved methods for detection ofErwinia atroseptica in potato tubers. Annu. Proc. Am. Phytopathol. Soc. for 1974 1: In press.
5. Graham, D. C. 1971. Identification of soft rot coliform bacteria. Proc. 3rd Int. Conf. Plant Pathogenic Bacteria, pp. 273–279.