NYTimes.com: Late Blight Fungus Threatens Tomato Crop in Northeast and Mid-Atlantic
My patio tomato gave me three tomatoes, two ripe and one green, and has totally succumbed to blight. I bought a new one at the farmer's market this morning for $4. I had better throw out the old plant before it affects the new one.
The blight affecting tomatoes is the same blight that affected the potatoes in mid-19th century Ireland and caused the Irish famine which caused me to be born in Illinois. Oh dear I can live without tomatoes for a year but my Irish genes can't live without potatoes!