How might one exterminate Black Widow spiders from a large outdoor area?

  • Thread starter Thread starter TruthSquad
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TruthSquad

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I seem to have a minor infestation going on in an area about 400 yards by 400 yards. Never seen them before, now I find like one a day. Is there any available insecticide that I can spray around to alleviate problem? Or am I reduced to killing them one-by-one?
This is an area visited by public, so I can't just let the problem be.
 
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