There doesn’t appear to be a thread about this avocado disease, so I figured I’d start one since I suspect I’ve just introduced it into my collection (EDIT: after consulting with some experts at UC Riverside, I’ve decided these probably aren’t from sunblotch, so I’m deleting the photos but keeping the link below). Here’s a great summary of this disease:
UC Integrated Pest Management - Sunblotch
[deleted photos of incorrectly identified sunblotch]
There does not appear to be any commercial laboratory that will test for this viroid, and unfortunately it can often be symptomless until a tree encounters stress, though otherwise asymptomatic trees often have reduced yield.
Does anyone know of a lab that will test for this? It would be nice to test a few of my larger multi-graft trees to ensure I don’t have other symptomless carriers.