Late blight, a devastating disease of tomatoes and potatoes, has been detected in northern Pennsylvania (Erie County, Pennsylvania). If you see it on your plants, please contact the Cornell Cooperative Extension in your county. Late blight is best known for causing the Irish Potato Famine and can kill plants in just one week, according to Cornell Cooperative Extension in Chautauqua County. It is caused by a fungus-like organism that spreads dozens of miles on storm fronts, so it could come to your…...

