Do Stink Bugs feed on orchid roots?

[patk]

I summer my orchids outside on my terrace. I also have other flowering plants there and last summer I brought home a hanging tomato plant. Sure enough, over the course of the summer, I spotted Stink Bugs (although I didn't know what they were at the time) on my orchid leaves and they would come out of the bark when I watered. Since I have brought my orchids inside, I have seen several Stink Bugs and have killed them all and flushed them down the toilet. My questions are:
Do Stink Bugs feed on orchid roots as they did on the tomatoes?
I think they lay eggs on plant leaves (I believe I saw some, but I scraped them off), but do they also lay eggs in the bark?
Can I use Triazicide on orchids?
Do I have to repot every orchid with fresh bark?
Thank you for your help.