Slime Flux, caused by Bacteria USDA Forest Service Forest Health Protection, Southern Region Slime Flux, caused by Bacteria Importance. Oaks are the most seriously affected species.
Incidence is low, but severe quality loss occurs to the infected tree.
Identifying the Cause. Clear sap flowing from the wound becomes colonized with bacteria, darkens, and develops an unpleasant odor. The specific bacteria causing the dark color and odor are rarely identified. Identifying the Injury. In addition, insects are attracted to the wet area.