New A2 strains of blight are much more aggressive than their old A1 counterparts, especially under dry conditions. A2 strains such as US 8 are gaining a foothold in eastern Oregon areas formerly free of blight. Fortunately, all strains are still susceptible to many common fungicides. We strongly encourage you to become familiar with late blight and how to control it. Eliminated volunteer potato plants and cull piles.
Varieties differ considerably in susceptibility to late blight tuber decay.
Russet Norkotah is extremely susceptible, followed closely by Shepody and Ranger Russet. The chipping potatoes are also highly susceptible and require close management. Russet Burbank, on the other hand, is moderately resistant. Use blight free certified seed. Request shipping point inspectors to make note if found.