Cedar apple rust & other diseases affect the trees. They may reduce the
crop, but won't make it any less edible.

I should clarify. There are diseases that specifically attack the fruit, but
that is a different matter.

Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)