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WC Mn/Dakotas | I think that is more from a seed placed fungicide or early post that might negatively impact good fungi. But if you have too wet of conditions, you still may want to treat. Not much fungicide is going to hit the ground at tassel. Other farming practices affect this topic more than fungicide imho.
Fungicide only protects yield you have it doesn't "make" yield. So the more potential yield you create the more likely to have fungicide have a good roi. Just because something only gets a few bushels doesn't mean it not got a positive roi and worth doing.
Every decision has a cost and you always give up something to get something really applies here. Proper soil health management, fertility, population, and hybrid selection all play a factor. If you make disease resistance your number 1 seed factor, you will likely get less roi from fungicide apps, but you will also likely give up yield potential to begin with too. Lots of ways to make fungicide not "pay". No disease pressure, wrong timing, wrong chemistry, wrong/no additives, wrong pH, poor application, etc.
Hard to measure all the benefits of fungicide besides yield. Harvestability, harvest timing, moisture, test weight, storage quality, volunteer corn control, etc
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Another fungicide question?
