James Rogers, Conservation Officer 
forestry@county.haliburton.on.ca

Forestry/Tree Harvesting Bylaw Enforcement

James Rogers, Conservation Officer
forestry@county.haliburton.on.ca

Hemlock Woolly Adelgid, Adelges tsugae

Information: Hemlock woolly adelgid (Adelges tsugae), or HWA, is an invasive insect that is a serious pest, damaging and killing eastern North American hemlock species. It was found in isolated locations in Ontario in 2012 and 2013, but these infested trees were removed, and the adelgid is not yet known to be established in eastern Canada. The adelgid is tiny insect, less than 1.5 mm in length. Adult is about 1.41 mm long by 1.05mm wide and possess a heavy waxy-coat.

For more information please see:
Invasiveinsects.ca website information : http://www.invasiveinsects.ca/hwa/hwa.html
CFIA’s factsheet: http://www.inspection.gc.ca/plants/plant-protection/insects/hemlock-woolly-adelgid/eng/1325610383502/1325610993895