Canada has confirmed its first official detection of the invasive spotted lanternfly in Windsor, Ontario, prompting authorities to increase surveillance and restrict the movement of potentially infested materials.

The Canadian Food Inspection Agency (CFIA) confirmed the detection on September 15, 2026. The agency says the insect can feed on more than 100 species of trees and plants, with significant agricultural impacts documented on grapes.

The CFIA has placed movement restrictions on regulated materials, including potentially infested plant materials, while teams investigate the surrounding area to determine the extent of the detection.

Spotted lanternfly can spread through human-assisted movement, including vehicles, cargo, outdoor equipment, plants and other materials. The insect's egg masses can survive winter and hatch in spring.

Authorities are asking Canadians to photograph and report suspected spotted lanternflies or egg masses. The CFIA recommends checking vehicles, outdoor furniture, garden equipment and other items after travelling through affected areas.

The detection is being closely watched because the pest could affect grape production, vineyards, horticulture and forestry if it spreads and becomes established. The CFIA says there is currently no confirmed established population in Canada.