Pacific Wax Myrtle fungus? #734269
Asked November 21, 2020, 10:44 AM EST
Hi, I planted a Pacific Wax Myrtle (Myrica californica) this fall, and I’m noticing some brownish-reddish spots and rust coloration appearing on the leaves. Mostly on new growth. Reading up on this species, I’m guessing it might be a type of fungus (anthracnose? leaf blight?). Ive read terrible things about phytophthora on wax myrtles in Oregon. I’m hoping I can catch/treat whatever this is early! I am in N Portland, St John’s. The shrub is in a south-facing part sun location. I have more photos available.
Multnomah County Oregon
Thank you for your question. The only disease this species is known to contract in the Pacific Northwest is leaf blight (which this not appear to be): https://pnwhandbooks.org/plantdisease/host-disease/california-wax-myrtle-morella-californica-leaf-blight Since our local Extension offices are closed to the public, and we have no staff to examine the leaves, I suggest you send a sample to the OSU Plant Clinic for identification: https://bpp.oregonstate.edu/plant-clinic I hope this is helpful. Good luck!
Thank you for the quick response!! I will mail out a sample to them on Monday!
Great! I hope it is nothing serious!