… but our independent journalism isn’t free to produce. Help us keep it this way with a tax-deductible donation today. In 2009, an invasive tree pest was discovered on an ash tree in St. Paul. This ...

The invasive emerald ash borer, according to the U.S. Department of Agriculture, was first found in the United States in southeast Michigan in 2002. In the decades since, the wood-boring beetle has ...

The insect threatens the health and survival of the black ash tree. In northern Wisconsin, April Stone is carrying on a centuries-old Ojibwe practice of basket making. She uses wood from the black ash ...