I suspect that my roommate has been using insecticides in my bedroom, living room, or kitchen.

How can I check or test this?

  • 2
    Why do you want to know? Are you concerned about your health, the health of your pet spider, the planet, or simply your room-mate's trustworthiness? Jun 18, 2015 at 12:01
  • 1
    Can't you just ask him or her!?
    – THelper
    Jun 19, 2015 at 8:45

1 Answer 1


If you have a particular location in the room where you suspect they may have been used, you could try releasing some live bugs there (ones that are moderately welcome indoors), eg some jumpy spiders. If they quickly die, that would indicate insecticide use.

Obviously you would ensure any bugs released are in good health to start with, and release several to get a more reliable result.

  • Sacrifice some bugs, to know if your roommate is a bug-killer lol
    – jawo
    Jun 29, 2015 at 11:42

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