The tomato blight from last year is back. It has been found in Blair County. Not only does it affect tomatoes but also potatoes and petunias. The disease, once it’s on your plants, wipes them out in about 3 to 4 days.
It starts out looking a greenish-gray to black spot on the top of the leaf. Then it starts affecting the plant’s stem. It will eventually spread to the underside of the leaf. You need to be very careful when you are working with it because it spreads easily through the air or by contact with people or animals.