What a great photo. You should post that in the bug ID area.
Strange but I have had no problems with the worms in the tomatoes themselves, they have strictly stuck to the foliage thank goodness. I know the issue was the plant crowding. These plants grew like crazy and got much larger and fuller than I imagined. It is my first year in this house so I was unprepared for such unrestrained growth. They are in a bed adjacent to the house, I planted them 3' apart and 3' from the wall. The only fertilizer I used was a bag of Black Kow worked into the soil a month before I planted. Within 8 weeks the small seedlings I planted were 7' tall. Since our nights are well over 70 now there will be little if any pollination so I started cutting the excess foliage off yesterday and noticed there were worms where branches were crowded (and tied) together. Everything got another dose of BT.
The fall crop will be planted 6' apart.