Colorado Parks and Wildlife.
Colorado Department of Agriculture. Division of Plant Industry.
Emerald Ash Borer (EAB) was found in Boulder, CO, in September 2013. As a non-native insect, EAB lacks predators to keep it in check. EAB only attacks ash trees in the genus Fraxinus (so mountain ash are not susceptible). EAB is responsible for the death of millions of ash trees in the Midwest. Help protect Colorado's ash trees! Don't move firewood, and consider chemical treatments to protect high-value ash trees.
New York City Department of Health.
Wisconsin Department of Natural Resources.
South Carolina Department of Natural Resources. Southeast Regional Taxonomic Center.
New York State Department of Environmental Conservation.
New York Department of Environmental Conservation.
Wisconsin Department of Agriculture, Trade, and Consumer Protection.
New York State Department of Agriculture and Markets.
Vermont Agency of Natural Resources. Department of Environmental Conservation.