Invasive species fact sheets (PDFs)
Invasive species are a major threat to Ontario’s environment, economy, society and health. Learn more about some of the invasive species that are a concern for Ontario.
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- Invasive carps
- Bloody red shrimp
- Butternut canker
- Common buckthorn
- Dog-strangling vine
- Eurasian water milfoil
- European frog-bit
- Fanwort
- Garlic mustard
- Giant hogweed
- Goldfish
- Hydrilla
- Kudzu
- Northern snakehead
- Phragmites
- Purple loosestrife
- Rainbow smelt
- Round goby
- Rudd
- Rusty crayfish
- Sea lamprey
- Spiny and fishhook water flea
- Tench
- Tubenose goby
- Water chestnut
- Water lettuce
- Water soldier
- Wild chervil
- Wild parsnip
- Yellow iris
Updated: July 01, 2025
Published: February 10, 2016