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Harmless treatment of mud in sand washing plant

Nov 15, 2020 16 The black and yellow mud dauber wasp. Basically a harmless solitary wasp that makes its nest from mud. I recently found and killed a yellow-and-black mud dauber wasp that was very docile because I didn't realize mud daubers are non-aggressive. When left alone these wasps only use their stingers to paralyze spiders which they eat.

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