Yes, late blight, the potato famine, a disease we rarely EVER see in Kentucky is here. And with a vengeance, especially in Eastern KY. This disease attacks both potatoes and tomatoes and has been diagnosed on tomatoes in Kentucky in the following counties: Laurel, Larue, Jackson, Breathitt, Johnson, Montgomery, and Wolfe.
Late blight is a fast-moving disease that has very much enjoyed the cool, damp, cloudy weather that we've had pretty much all this summer.
We are highly encouraging gardeners to scout their tomatoes (and potatoes) for this disease. Fungicides are recommended -- something like chlorothalonil (Daconil, Fungonil) or mancozeb/maneb.
For those of you doing things organically, use fixed copper or Oxidate. Under high disease pressure, even these will not work.
Let me know if you see anything suspicious in your gardens!