Fig. 2. Effect of a single spray application of hexanoic acid (Hx) and acibenzolar-S-methyl (ASM) on development of citrus canker lesions in detached sweet orange leaves at 15 days
after inoculation with Xanthomonas citri subsp. citri at 105 cfu mL1 in the detached leaf assay. a) Hx at 1.0 mM, b) Hx at 3.0 mM, c) ASM, 1 mM and d) nontreated control.