Published online: Jul 08, 2011
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Late blight was recently found in the Columbia Basin and is present in four fields north of the Tri-Cities.

It is recommended that all growers prepare for late blight due to the favorable weather conditions experienced this spring and the presence of late blight in many seed areas this past year.  A summary of fungicides that are effective against late blight can be found at:

If you find any suspicious samples, please send them to University of Idaho extension personnel or to Miller Research. Even if you know you have found late blight, samples may determine the genetic strain. This will better help scientists understand where the late blight originated. All submissions will be held confidential and reported only on a county basis.