An adult emerald ash borer is shown in this photo released by Michigan State University. (AP Photo/Michigan State University Photo)
DENVER (AP) -- Agriculture officials say an invasive insect responsible for the death of tens of millions of ash trees in almost two dozen states has been detected for the first time in Colorado.
The Colorado Department of Agriculture says the emerald ash borer, a green metallic beetle, was found by Boulder forestry staff Monday. The beetle, originally from Asia, was first detected in North America in 2002 in southeastern Michigan and has since killed more than 50 million ash trees across the country. It has now been detected in 21 states -- Colorado being the westernmost.
Colorado's agriculture department says ash trees thrive in Colorado, with an estimated 98,000 in the city of Boulder alone. The Denver metro area has about 1.45 million ash trees.