Comparative Susceptibility of Plants Native to the Appalachian Range of the United States to Inoculation with <i>Phytophthora ramorum</i>

Fig. 5. Relative susceptibility of native plants from the Appalachian range of the eastern United States to inoculation with sporangia of Phytophthora ramorum. One non-inoculated control leaf is on the left in all cases. Top to bottom: Spice bush, Prairie rose, Bladdernut, and Alder.



Image from Plant Health Progress article:
Comparative Susceptibility of Plants Native to the Appalachian Range of the United States to Inoculation with Phytophthora ramorum