I guess I misunderstood your views. So you think it is ok to apply after I scout and verify a presence of fungus. But I am using the preventitive aspect of the chemistry to manage a hybrid that is more suceptable to the disease before anything is present to damage the plant.

"But MFT,  you do not sell, nor do you commercially apply Fungicide products.

so your opinion does not count. 

   (  except only for YOUR profit. on your FARM.   )

most all the above posters make their living selling and applying such products. and that is good. for them.  and realizing that many operations have soil and management, hybrid selection  issues and they will benefit with these products applied across the corn belt.

and that is good for the ag economy.

so there is no (  motive ) to teach, educate the  farmers how to Fertilize. study soil and plant Health. select Hybrids Like you speak of MFT . because only YOU. the lowly, lonely farmer Benefits ever. 

Its much easier, I agree, for most to call in the applicator's to save  the sick and diseased plant.

just my opinion" Soil Life says.

So by me applying Quadris at V5 by your way of thinking I am wrong until I can verify the presence of Grey Leaf Spot.