Need help choosing an insect preventative

[biology]

Hi everyone! I have just moved (with all of my orchids!) from chilly New England to warm and humid North Carolina, so I am now encountering different orchid problems than I have seen in the past.

I have my orchids outside on my screen porch, which is not insect proof. I have been finding lots of crickets and grasshoppers in my orchid pots. Does anyone know if they will eat orchids? What do people recommend to prevent insect damage to outdoor orchids? I have looked around on the forum, but I couldn't seem to find a definitive answer on what type of general insecticide is best for prevention. Thank you for your help!