My tomatoes (beefsteak & grape) are thriving, but once again I am getting black spots on the lower branches and many low branches are turning yellow too. I’m removing those branches, but several of the black spots are starting to appear on the mid-height branches too. Is there anything I can do? Thank you so much.

There are several disease that can attack tomatoes but, from your description it sounds like Septoria leaf spot.  Hot humid weather favors these diseases and spray watering even more so.  Here’s a link to more on septoria leaf spot:  http://msue.anr.msu.edu/news/septoria_leaf_spot_on_tomatoes_preventing_spots_before_your_eyes


Here’s another like that may help you diagnose the problem yourself:  http://vegetablemdonline.ppath.cornell.edu/DiagnosticKeys/TomWlt/TomWiltKey.html

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