Since my original late blight post (July 6, 2009 after listening to a web seminar conducted by Cornell University), I’ve seen many updates regarding the spread of this highly contagious fungus. The most recent, Outbreak of Fungus Threatens Tomato Crop, in the New York Times, highlights conditions in a hard hit region in New York state. Similar articles have run in The Boston Globe and The Hartford Courant, and on local newscasts (There’s a Fungus Among Us).
UConn’s Plant Diagnostic Lab has confirmed late blight on CT grown tomatoes. Since the fungus spreads so quickly, it is very important for home growers to do daily checks of tomato plants for signs of late blight. To see photos check out any of the links above or those provided in my original late blight post.
Infected plants must be placed in plastic bags and left to disintegrate in the sun – do not compost infected plants. CT gardeners who suspect late blight, should contact UConn’s Home and Garden Center.