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West/NW Minnesota | Have you had much pressure in previous years? Does this field border a field where you had it last year and therefore may have more spores around? Lots of variables to consider. I personally like to stay ahead of it so it doesn't become a problem. I would spray if I were you in the next 4-5 days.
We have a good crop coming and have had high infection values. This year we are looking at a 4-5 spray program here.
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Cercauspra in sugar beets......when to spray?
