Emerald Ash Borer Agrilus planipennis Home 9 Category: Invaders ( Page 8 ) 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. Due to its major economic...
Spongy Moth Lymantria 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 North...
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 Dendroctonus ponderosae Home 9 Category: Invaders ( Page 8 ) What is Ontario Doing? To prevent this unwanted invader from coming into the province, Ontario has regulated mountain pine beetle as prohibited under the Invasive Species...
Beech Bark Disease Neonectria faginata Home 9 Category: Invaders ( Page 8 ) 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...
Butternut Canker Ophiognomonia clavigignenti-juglandacearum Home 9 Category: Invaders ( Page 8 ) Background Butternut canker is a fungus that infects and kills healthy butternut trees (Juglans cinerea) of any size or age. We don’t know where the disease...
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