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Andy Robinson

Potato Extension Agronomist

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Blightline August 16, 2017

Additional late blight has been confirmed near Inkster, ND and Perham, MN since the last report on Thursday August 14. We have had many questions from producers and consultants, and producers are actively applying fungicides for late blight protection. We recommend that all growers continue to scout potato fields for late blight. Growers in areas where late blight is present should apply a specialty fungicide with strong activity against late blight, such as Orondis, Revus Top or Ranman, Omega or Gavel on a five to seven day schedule. Curzate is recommended after a rain because it will kill late blight infections that are less than two days old.
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