Invasive Species

Emerald Ash Borer (EAB)

Emerald Ash Borer is an invasive insect from Asia that attacks and kills untreated Ash trees. The town has a strategy to detect and manage EAB in Oakville. For more information about EAB, what the town is doing and how you can help, visit the Emerald Ash Borer page.

Gypsy Moth

The Gypsy Moth, an invasive pest from Europe and Asia, is a concern because the caterpillar (larvae) feed voraciously; mostly on the leaves of oak and other deciduous trees. Visit the Health Canada website to learn more about effective control of Gypsy Moth.

Garlic Mustard

One of the greatest threats to woodlands in Oakville and across Ontario is Garlic Mustard (Alliaria petiolata), an invasive plant that displaces native wild flowers and plants, including White Trilliums. The Town of Oakville partners with local community groups to organize Garlic Mustard pulls.

Giant Hogweed

Giant Hogweed is a large, invasive plant whose sap contains chemicals that can cause skin to become hypersensitive to sunlight and erupt in painful blisters. For more information about Giant Hogweed and what the town is doing to combat it, visit the Giant Hogweed page.