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Andy Robinson

Potato Extension Agronomist

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Blightline August 25, 2014

The late blight reported in Becker County was negative after laboratory testing. Growers should continue to apply protectant fungicides for both late blight and early blight and continue to scout for late blight. Morning dews that form this time of the year provide free moisture necessary for late blight infection. Late blight is an explosive disease that can spread quickly in cool wet weather so it is important to keep the foliage protected with fungicides late in the season.
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