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Emerald Ash Borer

Emerald Ash Borer

Emerald Ash Borer Agrilus planipennis  Home 9 Invaders 9 Category: Forest Pests & Pathogens Background Emerald Ash Borer is a forest pest native to Asia that has killed millions of Ash trees in southwestern Ontario, and the Great Lakes States....
Spongy Moth

Spongy Moth

Spongy Moth Lymantria dispar dispar  Home 9 Invaders 9 Category: Forest Pests & Pathogens Background Spongy moth is an insect native to Europe and Asia that has been severely weakening trees across North America. Spongy moth was introduced to...
Invasive Earthworms

Invasive Earthworms

Invasive Earthworms  Home 9 Invaders 9 Category: Forest Pests & Pathogens Background Native earthworms from Canada were removed by the last glaciers and of the 19 species confirmed in Ontario, 17 originate from Europe and 2 from the United...
Mountain Pine Beetle

Mountain Pine Beetle

Mountain Pine Beetle Dendroctonus ponderosae  Home 9 Invaders 9 Category: Forest Pests & Pathogens What is Ontario Doing? To prevent this unwanted invader from coming into the province, Ontario has regulated mountain pine beetle as...
Beech Bark Disease

Beech Bark Disease

Beech Bark Disease Neonectria faginata  Home 9 Tag: Beech Bark Disease Background Beech bark disease is a new threat affecting beech (Fagus grandifolia) trees in Canada’s hardwood and mixed forests. This disease is caused by a combination of an introduced...
Butternut Canker

Butternut Canker

Butternut Canker Ophiognomonia clavigignenti-juglandacearum  Home 9 Invaders 9 Category: Forest Pests & Pathogens ( Page 2 ) Background Butternut canker is a fungus that infects and kills healthy butternut trees (Juglans cinerea) of any size or...