My 3 LZ trees have been very thracnose resistant. They will get powdery mildew though.
How is lemon zest against anthracnose?
Same here. It gets powdery mildew every year but I don't spray with sulfur and it seems to set fruit fine even with the powdery mildew. Squam actually pointed out to me at his farm that a few cultivars will set fruit regardless of the powdery mildew. I guess LZ may be one of them.
Jeff, have you had the same experience with it setting even with powdery mildew?
edit: This year I sprayed with Serenade to prevent the powdery mildew, a microbial biofungicide comprised of Bacillus subtilis, and the fruit set seems to be the same as the years where I didn't spray anything.