Do you notice the difference in the plants from photo 1 to photo 2?
I had to google the damage to figure out what might be causing it. After some researching, it became apparent that we had tomato horn worms. So I went back out to the garden to hunt them down.
Isn't it amazing how close in colour to the tomato stems they are? They don't move very quickly either so it was really hard to find them.
I won't include any of the 'after' photos. They were disturbing. I guess I'm like a momma bear with her cubs when it comes to those tomato plants so I hope you'll forgive me.