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April 2014

Meanwhile, as the spring thaws promise an even thicker ring of cattails in the coming weeks ... Lee Frelich, director of the University of Minnesota Center for Forest Ecology and board member of Friends of Loring Park, has been on the issue for years. He said if the bill passes, it will force the DNR to direct the Minneapolis Park Board to eliminate the plant. He said they would likely do so with machinery and herbicide.
Star Tribune

Congregants have traded in traditional palms for "Eco-Palms," fanlike gatherings of fresh green leaves attached to a central stem and imported from Guatemala and Mexico. Eco-Palms are harvested and marketed in sustainable ways that help preserve the rain forest and provide an economic boost to palm workers and their communities, said program founder Dean Current, director of the Center for Integrated Natural Resource and Agricultural Management at the University of Minnesota.
Philadelphia Inquirer

January 2014

University of Minnesota forestry expert Lee Frelich, director of the Center for Forest Ecology, told Minnesota Public Radio that, although there are many variables, there was a good likelihood the extreme temperatures could kill the EAB larvae.

It's a well-preserved gem of boreal forest, around 350 acres fronting two lakes on the edge of the Boundary Waters Canoe Area. It long belonged to a wealthy Chicago family with a deep love of the wilderness. Now the land and its tall pines near Ely are under the control and ownership of the University of Minnesota, which plans to use it for research on climate change's effects on northern forests and for teaching classes...."It's a wonderful place for people to come and study and reflect and experience the wilderness," said Linda Nagel, director of operations at the university's Cloquet Forestry Center and the overseer of the Ely facility.

Minnesota Public Radio

Pioneer Press

Star Tribune



San Francisco Chronicle

Albany Times Union

St. Cloud Times

Houston Chronicle

Lee Frelich, director, Center for Forest Ecology at the University of Minnesota, said the cold may have killed a majority of the emerald ash borers, but it likely didn't eliminate the beetles. ...The cold won't be enough to stop the invasive beetle's spread, but it will give the state a little more time to replace ash trees, according to University of Minnesota Extension entomologist Jeff Hahn.
Minnesota Public Radio
LaCrosse Tribune
Detroit News

Winona Post
Cedar Rapids Gazette


Other pests that originated in warmer places could be affected by extreme cold as well, including the gypsy moth, the hemlock woolly adelgid and the European beetle that carries Dutch elm disease, said Lee Frelich, director of the University of Minnesota Center for Forest Ecology. Native insects have evolved to cope with deep freezes.
Portland Press Herald
Miami Herald

I’ve spoken many times about the mortality of the pine bark beetle at -40 in northern Minnesota based on discussions with University of Minnesota forestry expert Lee Frelich, director of the Center for Forest Ecology. Winter mortality for emerald ash borer is definitely temperature dependent. The larvae can supercool to a certain point, but they die if they freeze, and there is variability in tolerance among individual insects.
Minnesota Public Radio

Minnesota Forest Scene



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