Table of plum cultivar susceptibility to the bacterial spot pathogen, Xanthomonas pruni
(Source of information and credits provided at the bottom of the page.)

^zR = Resistant. Specific control needed under high disease pressure.
S = susceptible. Control usually needed where disease is prevalent.
HS = highly susceptible. Control always needed where disease is prevalent. These cultivars should receive first priority when control is called for.

Data compiled by K. S. Yoder and A. R. Biggs from personal observations and the following sources:

Shepard, P. H. 1942. Growing plums in Missouri. Bulletin 31. Missouri Fruit Experiment Station. 35pp.

Ritchie, D. F. 1995. Bacterial spot. In: Compendium of Stone Fruit Diseases. J. M. Ogawa, E. I. Zehr, G. W. Bird, D. F. Ritchie, K. Uriu, and J. K. Uyemoto, eds. APS Press, St. Paul, MN. 98pp.