Sowbugs in Ontario: Signs & Prevention | Mosquito Man

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Sowbugs in Ontario: Identification, Habitat & Prevention

Sowbugs are small, gray, segmented crustaceans that need moisture to survive. They are commonly found under stones, flowerpots, damp debris, and mulch, and may enter basements or ground-level rooms. Mosquito Man looks for moisture sources, nearby organic debris, and entry gaps, then recommends practical changes and targeted service when needed. Read about other pests in our pest library.

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Our rat control package includes 4 visits over 12 months to eliminate existing infestations and help prevent future rat activity. During the initial visit, our technicians strategically place bait stations in areas where rat activity has been detected. After 2 weeks, we return to assess the infestation, seal potential entry points, and refill the bait stations. Follow-up visits are scheduled every 3 months to monitor rat activity, replenish bait, and ensure continued protection for your property.

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FAQs About Sowbugs in Ontario

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Are sowbugs insects?
No. Sowbugs are land-dwelling crustaceans, related to aquatic isopods. They need damp conditions and usually feed on decaying plant material.
They commonly shelter under stones, flowerpots, mulch, boards, and damp debris near foundations or garden beds.
They may enter through small gaps while seeking moisture or shelter. Frequent sightings can be associated with damp foundation areas or nearby organic debris.
Sowbugs are generally nuisance pests indoors and do not damage structural materials. Their presence can point to damp conditions that may need attention.
Reduce damp debris close to the foundation, improve drainage where appropriate, and seal accessible gaps around doors and ground-level openings.
Technicians assess where sowbugs are found, check nearby moisture and entry conditions, and recommend habitat changes or targeted treatment based on the inspection.

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