Established species
Canadian Forest Service scientists estimate that over 80 alien insects or diseases have been introduced into Canada since 1882, including several that have proven to be extremely destructive for Canada’s forests.
The following is a list of the main alien pests.
Show names in: English / Latin / FrenchInsects
- Ambermarked birch leafminer
- Asian longhorned beetle
- Balsam woolly adelgid
- Bark beetle
- Beech scale
- Birch casebearer
- Birch leafminer
- Black stem borer
- Cooley spruce gall adelgid
- Eastern spruce gall adelgid
- Elm leaf beetle
- European pine sawfly
- European pine shoot moth
- European pineneedle midge
- European spruce sawfly
- Hemlock woolly adelgid
- Introduced pine sawfly
- Larch casebearer
- Larch sawfly
- Lesser shothole borer
- Lombardy leafminer
- Mountain-ash sawfly
- Pear thrips
- Pine false webworm
- Pine shoot beetle
- Rusty tussock moth
- Satin moth
- Smaller European elm bark beetle
- Spongy moth
- Strawberry root weevil
- Winter moth