Hopefully "late blight" (Phytophthora infestans) won't be as big a problem in the Northeast this year as it was in 2009.
If you are growing tomatoes or potatoes this year, the following is some good precautionary advice from Cornell University via Garden Center Magazine. As always, an ounce of prevention is worth a pound of cure both for you and on behalf of your neighbors. It is a contagious disease.
It seems like a good idea to sprout your own seeds if you can manage it. It isn't hard to do. It just takes some time and a minimal amount of work. Here is some seed starting information about what I did last year.
Gardeners throughout the Northeast can take steps to protect their cherished tomato and potato plants against the “late blight” that wiped out thousands of home tomato plants during the 2009 growing season.
Late blight, Phytophthora infestans, is the fungus-like pathogen that causes lesions and eventual die-off in tomatoes, potatoes and other tomato-family plants. This disease can be highly contagious among susceptible plants, and gardeners need to take steps to identify the disease and prevent it from spreading.