Late Blight Confirmed in North Dakota
Late blight was confirmed in a potato sample we received today Thursday July 27 from Pembina County in North Dakota. The genotype is not yet known. Conditions have been favorable for late blight spread and infection, and growers in this area should apply a late blight specialty fungicide such as Orondis or Revus Top immediately. All growers in northeast North Dakota and northwest Minnesota should scout potato fields for late blight and be ready to apply late blight fungicides. Late blight is a community disease and can spread quickly in favorable weather. Be on the lookout for late blight and inform your community if you find it. Please send late blight samples to us at NDSU so we can identify the genotype in order to help with management. Gary