Add Yahoo as a preferred source to see more of our stories on Google. Ash trees growing in Sioux Falls boulevards are being marked with blue 9s by the city of Sioux Falls. City Hall's forestry ...

In late June, Paul Cigan got a call from an arborist in Burnett County asking him to check out a suspicious ash tree. The the leaves on the upper branches of the tree had thinned, making the tree look ...

… 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 ...

Purdue Landscape Report: Recently, there has been an uptick in questions related to one of Indiana’s most notorious invasive pests: the emerald ash borer. Homeowners, businesses, even professionals ...

Ash leaves are turning purple and yellow now, gardening season is winding down, and the aphids are back. While enjoying the spectacular fall color this year, you may have noticed tiny, powdery-blue, ...

There’s a tree killer on the loose in Oregon, and nobody knows how to stop it. An invasive green beetle called the emerald ash borer arrived in the Midwest from Asia, and it’s killed over 100 million ...

Throughout this month, K-State’s Division of Facilities will continue removing trees on campus to prevent infestations of ...

MADISON, Wis. (WISCONSIN DEPARTMENT OF NATURAL RESOURCES PRESS RELEASE) - The Wisconsin Department of Natural Resources (DNR) reminds hunters to avoid placing deer stands in or near ash trees as they ...