Does the sudden oak death pathogen sporulate on madrone like it does on California bay laurel? Sudden oak death can kill small madrones and cause significant dieback of larger madrones. While Phytophthora ramorum (the pathogen that causes sudden oak death) does sporulate on madrone, making in an infectious host, it is not a very effective at transmtting the pathogen as infected leaves whither rapidly, eliminating pathogen viability.
← Can madrone die from sudden oak death?
Can madrone die from sudden oak death?