Add Yahoo as a preferred source to see more of our stories on Google. The emerald ash borer (Agrilus planipennis) was first identified as an invasive species in the US in 2002. It is now found in over ...
An invasive pest that kills oak trees continues to spread through the Willamette Valley between Portland and Salem. Oregon officials completed a two-year study this summer that found the Mediterranean ...
A small beetle is responsible for the death and decline of billions of ash trees in North America, and the race is on to stop it from causing further damage. The USDA is hoping to spread the word so ...
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