Toronto Field Naturalists

Something to watch out for.

The invasive spotted lanternfly (SLF) is a growing concern for Ontario’s horticulture and natural areas. While there are no confirmed established populations in Ontario, it has become a significant issue in nearby U.S. states. Staying aware and knowing what to look for can help support early detection. It's important to be on the lookout for egg masses and nymphs in the wild and all stages of life on imports.

If you spot SLF at any stage, remember:
🔍 SPOT IT Learn the signs and stay alert in outdoor spaces and on transported items.
📸 SNAP IT Take clear photos to help with identification and reporting.
🫙 CATCH IT If possible, safely contain or destroy the insect or egg mass.
📢 REPORT IT Report sightings to the Canadian Food Inspection Agency.

For more information about Spotted Lanternfly, follow this link: https://bit.ly/38TXN38

Hidden harmful effects include elevated stress hormones, delayed or interrupted hunting, foraging, or nesting, premature fledging, and longer intervals between feeding young.