At what point is fungicide on corn not beneficial?

[JoshuaGA]

Little Southern Rust showing up around here, just got a confirmed report of it in the county today. Debating on weather or not to go ahead and spray. Corn is pollinated, starting to fill. Probably 2 to 3 weeks from dough stage. Do you play with fire and not spray or bite the bullet and spray. Would be using quilt excel and flying on.

[wctyilfarmer]

not sure if we'll make an ear here. do half for a test plot for future experience.