**Appendix A**

**Figure A1.** Leaf and fruit symptoms of different citrus cultivars affected with HLB in the different orchards. The number '1' and '2' represent the leaves and fruits, respectively; (**A**) *C. medica* L. var. *sarcodactylis* Swingle 'fingered citron'; (**B**) *C. reticulata* blanco var. 'Gongkan'; (**C**) *C. maxima* 'Mi Yu'; (**D**) *C. reticulata* Blanco 'Shatangju'; (**E**) *C. reticulata* Blanco 'Wokan'.
