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Title: Pretty much useless for the big guys
Review: I bought this because we have an infestation of hobo and black widow spiders in our garage. So far I've found that works okay on the little house spiders, but when it comes to the big spiders that can actually hurt you it's not effective at all. Today I basically emptied half the can on a black widow - it would curl up for a bit, then uncurl and keep walking. I finally just grabbed a roll of paper towels and smashed it. Not happy with this spray at all.
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