Fungicides, Rain and Humidity Peanut Notes No. 187 2023

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I’m looking at some peanuts that are 28 days since a Miravis application. They haven’t received much rain since the application, maybe 0.7 inches last week. I know conditions have been favorable some due to high humidity even with no rain though. The peanuts are not even recovering from drought stress at night anymore. I’m having a little trouble knowing I should tell the grower to spray a fungicide with the peanuts looking like they do. Any thoughts?


We have had years where we stopped because the peanuts just seemed to be sitting there with little rain. But dew points were high enough that we did get behind in some cases. I would definitely follow up the Miravis spray now. It’s too risky to go out to 5 or 6 weeks with no spray right in the middle of the season. Provost Silver is a good option and it likely will not have potential to flare spider mites. Other options are good too. We need one more spray for leaf spot and stem rot. I’d stay away from chlorothalonil given the dry weather and spider mite potential.