As you may or may not know, the northeast was devastated last year by Late Blight on tomatoes. Late blight is an air borne water mold.  The good news is that it needs green tissue to survive. So we should not have a problem again unless plants are brought in from southern United States.

The bad news is that it also lives on potatoes. This means if someone tries to save potatoes and replant them, the infected potato tubers could cause a re-infestation. So please plant only certified seed potatoes.  Potatoes that freeze or are fully composted will not carry late blight.  Be careful of renegade potatoes that are left in the garden or compost pile.  Your tomato cages, stakes, etc. will not carry the mold over winter.

 Click either image below for helpful information from the UMass Amherst Vegetable Program.