LATE BLIGHT CONFIRMED IN NORTHERN UTAH

Published online: Sep 10, 2011 Fungicide
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Late blight has been confirmed by the University of Idaho in a potato field in northern Utah. It appears the disease has been present for at least two weeks, but spread has been limited due to dry weather conditions.

It is highly unlikely that this field would pose a threat to Idaho potatoes. However, this confirmed outbreak illustrates that late blight could be present in other fields in our state. Growers with fields that are still green and weeks away from vine kill need to be sure that the foliage is protected. A standard protectant such as chlorothalonil or EBDC will be effective in doing this.

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