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Chinese wasps battling emerald ash borer | Ottawa Sun
ottawasun.com
FILE - In this Oct. 26, 2011, file photo, forester Jeff Wiegert of the New York State Department of Environmental Conservation, points out the markings left ... › gallery › wcm
Emerald ash borer: Small pest, big potential problems
www.post-gazette.com
Jul 19, — In this Oct. 26, 2011, file photo, forester Jeff Wiegert, of the New York State Department of Environmental Conservation, removes emerald ... › › stories
Top 10 invasive species - Canada News - Castanet.net
www.castanet.net
Aug 4, — Forester Jeff Wiegert, of the New York State Department of Environmental Conservation, removes emerald ash borer larvae from an ash tree at ... › news › Top-10-invasive-spec...
Top 10 invasive species spread by summer recreational ...
toronto.citynews.ca
Aug 4, — Forester Jeff Wiegert, of the New York State Department of Environmental Conservation, removes emerald ash borer larvae from an ash tree at ... › › top-10-invas...
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