Question
I along with most of my neighbors in Cordova, TN (Memphis) are having the same issue with our tomatoes. The plants (leaves and stalks) appear to be exceptionally healthy.  Each plant has produced a lot of blooms.  The blooms look healthy but after a few days the small stalk connecting the bloom to the plant droops or seems to break at a 90 degree angle.  
Out of all the plants in the neighborhood there might be 8-10 tomatoes.
I do not see what I would define as insect damage although today I did apply 7-dust just to make sure.  
Our soil is mostly clay and the Memphis area did have a lot of rain during the spring season.
Can you give me some direction on how to correct and what might be going on?
thanks
tim

Answer
Hi Tim, Tomatoes and peppers often don't set many (or any) fruit when night temperatures are above 75 or day temperatures are above 95.  Pick up a bottle of "Blossom Set".  Every day, spray open blooms and you can artificially set some fruit.  Water deeply but infrequently and use sevin dust with caution.  Sevin is very toxic to pollinating insects.  
I'm familiar with your situation.  I live in Bartlett and manage a garden center in Eads.  Jim