A new potato alert was posted to PNWPestAlert.net.
A sample of early blight from Rangers being grown in the Hazelton area was found yesterday. Lesions were only observed on the lower, senescing leaves of the plant. This is early for this area. The most effective timing for fungicide application for early blight control is just before row closure.
A research report by Miller Research outlining the relative efficacy of different fungicide programs can be found at the link listed below.
To view the full alert, and to download any attached files, please go to www.pnwpestalert.net.
SOURCE: Pacific Northwest and Treasure Valley Pest Alert Network