I think they might by fruit flies - possibly. Anyway, what is the best
attractant for fruit flies, if that's what these little pests are?

I keep a 'slop bucket' in the kitchen for waste and it attracts fruit
flies if I don't empty it daily. I just put in a small piece of yellow
plastic vapor insecticide and cover loosely. The loose cover allows the
flies in and keeps enough of the vapors in to kill them.

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