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Andy Robinson

Potato Extension Agronomist

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Blightline August 27, 2013

Current recommendations: No additional late blight has been reported in our area. Late blight severity values have remained mostly unchanged at most locations, and conditions for late blight infection and spread has been unfavorable due to the continuing hot weather. We recommend to continue to scout fields for the presence of late blight and apply protectant fungicide applications until the end of the growing season to prevent late season infection that may occur if the weather becomes favorable for late blight. Concentrate scouting on low areas and along tree lines that stay wetter longer. It takes only 12 hours of wetness for late blight spores to infect.
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