Emerald Ash Borer

The festival's proceeds will be used to treat the park's ash trees and fund other amenities.

Last year, voters in the 45th Ward participatory budgeting process opted for 450 new trees.

Dozens of infected ash trees were recently reduced to stumps in River Park.

The backlog of requests is down 80 percent, and crews will catch up entirely by the end of the year.

There are a number of ways to help like applying for a grant or planting a tree in someone's honor.

The city wouldn't pay to treat the trees, so local activists took matters into their own hands.

The emerald ash borer ravaged the neighborhood's namesake park, forcing the felling of 650 trees.

Openlands will meet on Saturday to replant where ash trees have died.

Hundreds of trees are being removed from Humboldt Park’s 219-acre namesake this month.

All six trees were eaten from the inside out by the Emerald Ash Borer, city officials said.

Sad? Rest assured that the city will be planting 7,800 news trees in 2015, a spokeswoman said.

DNAinfo.com's resident urban gardener wants a tree planted in her parkway. But at what price?

“Logan Square's trees are facing a serious crisis," said Angela Larson, of Logan Square Preservation.

The invasive Asian beetles killed three blocks of trees on the northern boundary of Jackson Park.

More than 90 percent of the ash trees treated in 2011 and 2012 are still alive, city officials said.