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Emerald Ash Borer

The Emerald Ash Borer beetle was confirmed in Canada in 2002. In 2013, Clarington’s Operations Department took an inventory of trees infested with the Emerald Ash Borer. A total of 2,344 Ash trees were found on urban municipal right-of-ways that were infested, and Clarington is working to remove and replace these infected trees.

2020 update

All infested Ash trees in Clarington have now been removed. Clarington is working to replace all removed trees with a variety of other native species of trees by 2021. Crews will begin planting replacement trees in spring 2020, beginning in Bowmanville and working east.

The emerald ash borer beetle is native to China and eastern Asia. The emerald ash borer lays eggs on tree bark and in crevices. In its larva form, the emerald ash borer feeds on the tree, and cuts off its water and nutrient supply, eventually causing the tree to die.


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