Cultivation/Production, North America, Pests and Diseases, Studies/Reports

Potato late blight found in one field in Washington State

Matthew Weaver of Capital Press reports that potato late blight has been found in one field north of Pasco, Wash., industry researchers say.

Blight on the leaves cause lesions that kill parts of the plant that are above ground. Spores can move down into the tubers and cause infection. If those potatoes go into storage, they don’t last very long, Waters said.

Incidence is light in the field, according to the Washington State University potato pest alert states. Fields between Pasco and Eltopia should be treated with a fungicide every seven days.

According to the pest alert, other fields in the Columbia Basin should be treated at a 10- to 14-day schedule and treated one to seven days before any major rainfall.

Full report in Capital Press here

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