Yes, earwigs can be an issue in straw. I have them here but they don't do too much damage. There is a product called Sluggo Plus that will get rid of slugs, snails and earwigs and it's still safe to use on produce that is going to be consumed. Earwigs are also attracted to olive oil with a dash of soy sauce in it. They will crawl in by the thousands and drown. It's very satisfying.....LOL.....