Canadian Forest Service Publications

Emerald ash borer pest risk analysis for Northern Ontario and Manitoba. 2015. Canadian Council of Forest Ministers, Ottawa, Ontario. 40 p.

Year: 2015

Issued by: National Capital Region

Catalog ID: 35964

Language: English

Availability: PDF (download)

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Emerald ash borer (EAB) is a destructive invasive alien species of ash trees which was first detected near Detroit, Michigan, and Windsor, Ontario, in 2002. Even before then, however, it was killing trees, and has continued to do so—a number now in the millions of trees. Significant economic and ecological impacts have resulted.

This risk analysis was requested by the Canadian Council of Forest Ministers Forest Pest Working Group because of (1) the potential long-distance spread of EAB into Northern Ontario and Manitoba by people moving infested materials from infested parts of Ontario, Quebec and the United States, and (2) the potential impacts that EAB could have on ash trees in un-infested areas of Canada.

The analysis found that there are no biological impediments or regulatory controls to prevent the spread of EAB into the study area. Economic impacts are expected to be significant in all ash forest types: urban forests, woodlots and managed forests, and linear forests and shelterbelts.

To manage EAB requires taking preparatory steps before the insect arrives and making plans to slow its spread when it is discovered. Long-term planning should be considered, including species diversification to minimize the lasting impacts of EAB in communities.

Also available under the title:
Analyse du risque phytosanitaire que pose l'agrile du frêne pour le nord de l'Ontario et le Manitoba (French)

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