Forest Invasive Alien Species
www.exoticpests.gc.ca
Established Insects
- Ambermarked birch leafminer
- Balsam woolly adelgid
- Beech scale
- Birch casebearer
- Birch leafminer
- Black stem borer
- Common pine shoot beetle
- Eastern spruce gall adelgid
- Elm leaf beetle
- European pine sawfly
- European pine shoot moth
- European pineneedle midge
- European spruce sawfly
- Gypsy moth
- Introduced pine sawfly
- Larch casebearer
- Larch sawfly
- Lombardy leafminer
- Mountain ash sawfly
- Pear thrips
- Rusty tussock moth
- Smaller European elm bark beetle
- Winter moth
Birch casebearer
New white birch foliage attacked in the spring
Case opened to show larva
Mass of cases on white birch foliage before emergence of adult in June
Lateral and ventral views of pupa
Adult (wingspan: 12 mm)
White birch severely defoliated
Taxonomy
Description
Distribution Map
Main host(s)
Gray birch, white birch, yellow birch
Diet and feeding behavior
Phytophagous / Phyllophagous / Casebearer
Micro-habitat(s)
Leaf
Distribution
British Columbia, Eastern Canada, Manitoba
