help! blueberry leaf rust
my sunshine blue blueberry plant has leaf rust, and i checked the undersides of the leaves and its worse than i thought. its affecting 80% of all the leaves! at this point, only 10% are dying, but it has infected nearly the entire plant.
its 2 years old and is currently producing its first berries. i would prefer not to use fungicides, but what choice do i have?
even worse, i have two young plants on the same balcony, and so far they aren't infected, but i fear they will. my balcony is not that big, and i try to keep them far apart, but i'm still concerned.