Paper Wasps in Ontario
Paper wasp identification, open-comb nests and safety guidance for Ontario homes and businesses.
What paper wasps look like
Paper wasps have slender bodies, long legs and narrow waists. Their legs often hang visibly during flight, helping distinguish them from more compact yellowjackets.
Where activity develops
They build exposed, umbrella-shaped paper combs beneath eaves, railings, light fixtures and other sheltered surfaces.
Signs worth documenting.
Open paper comb with visible cells
Wasps hanging beneath an overhang
Defensive activity close to a small nest
Make the property less favourable.
Prevention depends on correct identification and the conditions supporting activity. These steps are a practical starting point.
Identification before treatment
Similar-looking pests can require very different responses. Avoid applying a product until the pest, location and permitted label directions are clear.
Serving Eastern Ontario
Emerald Pest Control serves Belleville, Kingston, Trenton, Napanee, Brighton, Stirling, Picton, Quinte West and surrounding communities.
Not sure whether it is paper wasps?
Send a clear photo and tell us where it was found. We can help confirm the pest and discuss appropriate next steps.