$temphylium Onion Blight can cost onion growers $ in so many ways. Hear about ways to get a handle on the SOB as Dennis Van Dyk chats with Christy Hoepting about Stemphylium control in onions.  Christy mentions at some point "What the frick is a FRAC?" Here is a quick run down of the products and their FRAC codes from Christy's most recent trial in 2020.  "Always be rotating through them and guard the 7's with your life".Viathon = tebuconazole + potassium phosphite = FRAC 3 + 33Luna Experience = fluopyram + tebuconazole = FRAC 7 + 3Luna Tranquility = fluopyram + pyrimethanil = FRAC 7 + 9Inspire Super = difenoconazole + cyprodinil = FRAC 3 + 9Quadris Top = difenoconazole + azoxystrobin = FRAC 3 + 11Merivon = fluxapyroxad + pyraclostrobin = FRAC 7 + 11Rovral = iprodione = FRAC 2Scala = pyrimethanil = FRAC 9Endura = boscalid = FRAC 7Cabrio = pyraclostrobin = FRAC 11Quadris = azoxystrobin = FRAC 11

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