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Canada detects first spotted lanternfly as pest spreads across North America

Canadian authorities have confirmed the first detection of spotted lanternfly in Windsor, Ontario, marking the invasive insect's arrival north of the United States border. Movement restrictions are now in effect to contain the agricultural pest, which has already infested 18 US states.

LSN India · 19 September 2026

Canada detects first spotted lanternfly as pest spreads across North America

Canada has confirmed its first case of spotted lanternfly infestation in Windsor, Ontario, prompting immediate containment measures as the invasive insect continues its northward expansion across North America. The detection represents a significant milestone in the pest's spread, which has already affected agricultural and forestry operations across 18 American states.

Federal and provincial authorities have implemented movement restrictions in and around the Windsor area to prevent further dispersal of the insect. Quarantine measures are targeting the transport of potentially infested materials, including plants, wood products, and outdoor equipment that could harbour the pest.

Surrounding regions are now under enhanced surveillance as officials assess the full extent of the infestation and map the movement patterns of the spotted lanternfly population. Early detection and rapid reporting from the public remain critical tools for monitoring and controlling the pest's expansion.

The spotted lanternfly poses substantial economic risks to Canada's agricultural and forestry sectors. The insect feeds on a wide range of host plants, with particular damage reported on grapevines, apple trees, and hardwood species. Experts emphasize that swift action during the early stages of infestation is essential to minimize long-term ecological and economic impacts.