I thought it was just over watering, but I cut the bottom stems off and its still spreading (not to mention, we're having a drought right now so they're not over watered). These pics were taken a week or two ago before I cut the bottom stems off, but like I said, its spreading upwards. What is it and how do I fix it?? They've got tons of big green tomatoes all over them now so I don't want to give up on them. 
http://i213.photobucket.com/albums/c...y/DSCN5495.jpg
http://i213.photobucket.com/albums/c...y/DSCN5498.jpg
ETA: It looks like its on some of my other plants too, just not as bad... (basil on the left, cuke seedling on the right)
http://i213.photobucket.com/albums/c...y/DSCN5507.jpg

http://i213.photobucket.com/albums/c...y/DSCN5495.jpg
http://i213.photobucket.com/albums/c...y/DSCN5498.jpg
ETA: It looks like its on some of my other plants too, just not as bad... (basil on the left, cuke seedling on the right)
http://i213.photobucket.com/albums/c...y/DSCN5507.jpg










