Treatments included: Salmonella inoculated on
unwaxed natural-light-etched labels; Salmonella inoculated on
waxed natural-light-etched labels; Salmonella inoculated on unwaxed
natural-light-etched labels, followed by wax reapplication;
and Salmonella inoculated prior to labeling. Control samples consisted
of Salmonella inoculated on unlabeled citrus epidermis, in combination with various wax applications, and a puncture surface with wax reapplication (Fig. 1)