tomato blight?

Asked August 4, 2013, 3:46 PM EDT

Hello, My tomato plants seem to have some kind of blight, but I can't quite tell what kind. Could you tell me what is wrong with them, and how I might be able to treat them? Thank you.

Dakota County Minnesota

1 Response

It appears from the first photo that the problem on the tomato plants may be due to early blight or from Septoria leaf blight, which commonly happens later in the season with the lower leaves on tomato plants. It is difficult to see without a close up of the spotting on the leaves. Rather than write more, check the link on early blight:
http://www.extension.umn.edu/yardandgarden/ygbriefs/p256earlyblight-pot-tom.html
Read this link to information on Septoria leaf blight and controlling disease on tomatoes:
http://www.tc.umn.edu/~magrabow/Posters/MG%20Tomato%20Disease%20Poster%20new.pdf