As of October 8, 2026 , 23 separate spotted lanternfly (SLF) detections have been confirmed in Windsor Essex by the the Canadian Food Inspection Agency (CFIA). According to the CFIA's spotted lanternfly observations webpage, a detection is defined as the "presence of live spotted lanternfly, confirmed in the Canadian environment through official CFIA surveys." Spotted lanternfly (Lycorma delicatula, Hemiptera: Fulgoridae) has been regulated in Canada since 2018 and CFIA continues to follow up on reports of the insect and follow the SLF response framework.

Grape Growers of Ontario is working with provincial and federal governments to stress the impact this invasive insect could have on the grape and wine industry and economy. With confirmed detections increasing, GGO is emphasizing the importance of early detection and access to the necessary crop protection tools. Emergency use and label expansion applications have been submitted for products that support SLF management in vineyards. GGO remains vigilant and committed to advocating for growers’ needs and will continue to provide up-to-date information to help protect vineyards. Growers are encouraged to familiarize themselves with the prevention and management information included in the following resources:

• "Spotted lanternfly prevention practices for grape producers", Ontario Ministry of Agriculture, Food and Agribusiness' (OMAFA)
•  
• "Impacts and Management of SLF", Dr. Wendy McFadden-Smith's 2026 OFVC Presentation
•  
• "Preparing for the arrival of spotted lanternfly", CFIA's 2026 OFVC Presentation

Identification resources, such as posters and a 'spotted lanternfly course' can be found on the Invasive Species SLF webpage. These can be shared with staff, contract workers and the public.

 

Remain vigilant!

These detections are very close to the vineyards of Essex County and spotted lanternflies are excellent hitchhikers. To prevent the spread of this insect and its devastating effect on Ontario’s grape and wine industry, one of the most impactful actions is to thoroughly check all personal and commercial vehicles and vessels traveling in and out the City of Windsor and the broader Essex County area for any life stages of spotted lanternfly. Items that have been stored outdoors, such as grape bins, should also be checked. This travel checklist outlines how to check a vehicle and outdoor items for spotted lanternfly.

What to look for
 

At this time of year, be on the lookout for the adult phase of SLF; about 2-3 cm long, they have pinkish-grey wings with black spots and black veins at the tips (see photo above). When the forewings are open, the bright red underwings become visible (for example in flight). Egg masses can be found year-round – look for 2.5 cm-long greyish, dried mud-looking secretions on natural and artificial surfaces outdoors (see image below).  

 

If you think you have found the spotted lanternfly or its egg masses:

1. Take a photo or video.
2. Catch the insect or scrape the egg masses, and put it into a sealable container.
3. REPORT it to the CFIA immediately on their SLF webpage.

Please contact Keara White at kwhite@grapegrowersofontario.com or 289-929-7384 if you have any questions regarding spotted lanternfly.

Source:  Grape Growers of Ontario October 8, 2026 news release