Webinar: Transitioning Black Ash Wetlands to an EAB Infested Future

Tuesday, October 17 from noon to 1:00pm Emerald ash borer is just now beginning to extend into the near mono-specific black ash (Fraxinus nigra) wetlands of the western Great Lakes region. Loss of ash from these forests may have profound changes on ecosystem structure and function. I discuss a project located on the Chippewa National Forest that is designed to […]

Continue Reading

Fall control for EAB

The risk status for emerald ash borer was changed yesterday to low activity. This is a great time of year to inspect your ash trees and prune or remove any branches, stumps, or trees. Forest landowners who have a stewardship plan for their ash stands may be preparing for a harvest to reduce the percentage of ash on their property. […]

Continue Reading

Changing Ash Habitats and the Wildlife Impact

Fraxinus Fuss A little green bug has potential to cause quite a bother in Minnesota when it comes to our trees in the genus Fraxinus, or ash trees. This pest, the emerald ash borer (EAB), is an invasive insect from Asia. First discovered in Michigan in 2002, it has caused the death of millions of ash trees in the eastern […]

Continue Reading

Diseases and Insect Pests of Hardwoods (Broadleaf trees) – by species

Apple/Crabapple (Malus): Aphids on Deciduous Trees and Shrubs Apple Maggot Management Apple Scab Disease Management Recommendations for Trees and Shrubs (Black Rot Canker, Cedar-Apple Rust, Fireblight, Frog-eye Leaf Spot, Powdery Mildew, and Apple Scab) Fireblight Forest Tent Caterpillars in Minnesota Forest Tent Caterpillar (USFS) Gypsy Moth (USFS) Gypsy Moth in Minnesota (MNDNR) Insecticide Suggestions to Manage Landscape Tree and Shrub […]

Continue Reading

Upcoming event: Ash tree inventory in the Twin Cities (August 13 in St. Paul)

This session and volunteer event will allow participant volunteers to use mobile tablet computers to collect ash inventory data in the Twin Cities. This data will inform a Minnesota Department of Agriculture (MDA) research study related to emerald ash borer (EAB). Information about this research study can be found here. The University of Minnesota Extension and the MDA are working […]

Continue Reading

UMN Extension to develop an ash management guide for family forest owners

By Julie Miedtke and Angie Gupta, UMN Extension and Mike Albers, MN DNR We know that Emerald Ash Borer (EAB) is a significant invasive forest pest.  EAB has the potential to cause extensive tree mortality in ash and seriously alter forest stand composition in stands with ash.  EAB may also negatively impact traditional forest product economies, plant communities, wildlife and water quality.  In […]

Continue Reading

EAB: A Different Perspective

I spent a recent weekend at the North House Folk School in Grand Marais learning the art of black ash (fraxinus nigra) basketry from Michael Benedict. Mr. Benedict is a member of the Oneida Nation in New York and lives and works near Saint Paul. You’ve most likely heard about ash trees in recent months because of Emerald Ash Borer […]

Continue Reading

Emerald ash borer discovered in St Paul, MN

May 14, 2009 The Minnesota Department of Agriculture has announced that EAB has been discovered in St Paul, Minnesota.  There’s a news conference at 3:30 today at Hampden Park in St Paul.  We’ll provide updates as we’re able. Extension’s EAB page has links to help Minnesota landowners and citizens prepare for EAB. Update: MDA has a press release on the […]

Continue Reading

Minnesota's ash resource & markets

Keith Jacobson of the Minnesota DNR – Forestry Utilization & Marketing unit has just updated his brief overview of Minnesota’s ash resource and markets.  This just came out by email today, and is dated February 2009. Download a PDF copy here. Eli SagorEli ‘s work addresses Minnesota forest ecology & management. He’s based in St Paul.http://www.MyMinnesotaWoods.umn.edu

Continue Reading

Diseases and Insect Pests of Hardwoods (Broadleaf trees)

General Information: Disease Management Recommendations for Trees and Shrubs Specific Diseases/Insects: Anthracnose and Other Leaf Spot Diseases of Maples Anthracnose Diseases of Eastern Hardwoods (USFS) Anthracnose of Shade Trees Aphids on Deciduous Trees and Shrubs Aphids on Trees and Shrubs Apple Scab Armillaria Root Disease USFS Carpenter Ants-can affect any standing wood/lumber Damping-off of Seedlings Emerald Ash Borer Environmentally Conscious […]

Continue Reading