1. 1Centre for Plant Health, Canadian Food and Inspection Agency, Sidney, British Columbia, Canada, V8L 1H3
2. 2Centre for Plant Health, Canadian Food and Inspection Agency, Sidney, British Columbia, Canada, V8L 1H3
3. 3Natural Resources Canada, Canadian Forest Service, Victoria, British Columbia, Canada, V8Z 1M5
4. 4Natural Resources Canada, Canadian Forest Service, Victoria, British Columbia, Canada, V8Z 1M5
5. 5Natural Resources Canada, Canadian Forest Service, Victoria, British Columbia, Canada, V8Z 1M5