Western Conifer Seed Bugs in Ontario
Western conifer seed bug identification and overwintering prevention in Ontario homes.
What western conifer seed bugs look like
These brown, elongated bugs have widened leaf-like sections on the hind legs and a pale zigzag marking across the wings.
Where activity develops
Adults feed on conifer seeds outdoors and enter buildings in fall to overwinter. They do not reproduce or damage the structure indoors.
Signs worth documenting.
Large brown bugs near windows
Fall activity on sunny walls
A strong odour when handled
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 western conifer seed bugs?
Send a clear photo and tell us where it was found. We can help confirm the pest and discuss appropriate next steps.