Blightline July 29, 2019
NDSU Potato Blightline 29 July 2019. Late blight has not been reported in ND, MN or MB. Small outbreaks of late blight have been reported in the Columbia Basin of WA, Wood County WI and Erie County PA. Late blight severity values (DSV’s) in all potato growing areas have exceeded 15, the critical risk value at wh for late blight spores ich late blight infection will occur if inoculum is present.