Battle scorpions with pest-proofing control measures


August 19, 2020

Headshot: Dr. Cisse Spragins

Dr. Cisse Spragins, CEO/founder of Rockwell Labs

Scorpions are one of the more fear-inducing pests we encounter. Problematic in the U.S. across the South, and particularly in the Southwest, these arthropods can inflict painful and potentially poisonous stings. Like other arthropods, they seek moisture, harborage and food. Nocturnal by nature, they like to burrow and often are found in dark, damp places with access to soil.

Control measures include pest-proofing to eliminate access to harborages using caulk, mesh to cover drain openings, and doing moisture reduction if possible. They feed on insects, so perimeter treatment with a borate granular bait can help reduce insect populations — and also get secondary kill when scorpions prey upon treated, slow-moving bugs.

Larger scorpion species are always harder to kill with a contact product, because they have more body weight relative to body surface area to come in contact with the product. As with other difficult species, dusts, wettable dusts and microencapsulated liquids seem to offer the best results.

A botanical wettable dust is a great choice, as it provides strong repellency and has a fumigation effect in voids. The dust will provide greater contact with the pest. Apply it as a dust or a wettable powder into cracks and voids, under siding and other attractive harborage areas.


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