Tomatoes & Peppers: Why are tomatoes wilting?, 1 by Ruth

Ruth wrote:
My Anna Russian tomatoes have a serious case of wilting. The other tomatoes right beside are fine. I can\'t find any bugs and I feed them just like the rest. All the other tomatoes look good with the exception of one San Marzano all the way on the other end of the row. Can someone tell me what is going on?? I did find some Colorado potato beetles on a different tomato, but I don\'t think that has anything to do with it. HELP!! The first picture is the Anna Russian and the second is the San Marzano. Thanks!!