Janice LeBoeuf, OMAFRA Vegetable Crop Specialist, Ridgetown
More photos and information on identifying late blight can be found at:
Vegetable Crop Update – late blight look-alikes
Cornell – Long Island late blight on tomato
Purdue late blight resources and news
A weekly late blight update from Cornell provides information on late blight confirmations in New York and surrounding states as well as a list of late blight resources online.
home grown tomatos with brown spot the size of the tomato on bottom, why are they like this? I am growing them in pots…thanks Ken
Sounds like blossom-end rot. Try to minimize problems by keeping a steady supply of moisture to the plant. Water stress triggers it; once triggered, it will develop (can’t reverse the damage).