Late Blight in Eight Columbia Basin Potato Fields

WSU’s Dr. Dennis Johnson discovered late blight in eight Columbia Basin potato fields north and southeast of Pasco.

Johnson says fields with late blight should be treated on a five-day fungicide application schedule while fields without late blight in the affected area should treat on a seven day schedule.

Other fields in the Basin, according to Johnson, should treat at row closure and then on a 10-14 day schedule.

WSU experts are always available to help potato growers who need help identifying or treating late blight and you can reach Johnson in particular at 509-335-3753.

If you have a story idea for the Washington Ag Network, call (509) 547-1618, or e-mail krounce@cherrycreekradio.com.