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Full Breakdown

First Canadian Detection of Spotted Lanternfly in Windsor

By Drooid · · How we work

Core Event

The Canadian Food Inspection Agency (CFIA) confirmed the first agency-recorded presence of the spotted lanternfly (*Lycorma delicatula*) in Canada after a survey located the insect in Windsor, Ontario. Residents had previously reported sightings, but this marks the inaugural official detection by a federal survey, according to the Invasive Species Centre.

Background & Context

The spotted lanternfly is native to southeast Asia and was first identified in North America in Pennsylvania in 2014. Since then it has spread across several U.S. states, feeding on the sap of more than 100 plant species. Its arrival in Windsor represents the pest’s northward expansion into Canadian territory.

Official Statements & Responses

The Invasive Species Centre warned that the insect can damage and kill grapevines, posing a significant threat to the grape and wine sector, as well as other crop growers, horticulture, forestry, residential yards, and neighbourhood parks. The centre emphasized that unchecked spread could generate widespread economic, ecological, and social consequences. The CFIA instructed the public to photograph any suspected adult, nymph, or egg mass, place the specimen in a sealable container, and submit the report with an accurate location. The agency indicated that it will evaluate reports, conduct site surveys, and collect insects as needed.

Potential Impacts

Adult lanternflies measure roughly 25 mm in length and 12 mm in width, with distinctive red hind wings and black-spotted forewings. Their feeding releases a sticky honey-dew that can accumulate at the base of trees, fostering sooty mold growth and attracting bees and wasps. Damage to grapevines and other hosts can reduce yields for growers, while the insect’s broad host range raises concerns for horticultural and forestry operations across the region.

Identification and Reporting Guidance

The centre provided visual cues: adults display a yellow abdomen with horizontal black stripes; early-stage nymphs are black with white spots, while later nymphs turn red with black and white markings. Egg masses appear as grey mud-like smears on tree bark or hard outdoor surfaces, later resembling seed-like rows and measuring about 25 mm long. The public is urged to report any such findings promptly to the CFIA to enable rapid response and containment efforts.