Selecting fruit and nut producing plants for your landscape

There are many benefits to planting trees and shrubs in your landscape. Trees take in carbon dioxide and expel oxygen in a harmonious relationship with breathing animals and humans. “One acre of forest absorbs 6 tons of carbon dioxide and produces 4 tons of oxygen. Enough to meet the annual needs of 18 people.” (USDA) Trees improve soil and water […]

Continue Reading

Pruning: What, Why, When, and How

by Eric North, Research Fellow, University of Minnesota Department of Forest Resources   What is pruning? One of the most frequent questions I am asked with regard to tree care is: “When should I prune my tree?” While I think people are actually asking what time of year they should prune their tree, it might be better to start with […]

Continue Reading

Preparing your trees for winter

It may not seem like it with the unseasonably warm temperatures we’ve been experiencing this fall, but winter is on its way. Are your trees and perennials prepared for the changes ahead? Perennial shrubs and trees, especially conifers, should be watered generously until the soil freezes. Mulching trees will help reduce winter root damage. Young maples and thin barked trees may […]

Continue Reading

Emerald ash borer risk status in Minnesota

Q: What is emerald ash borer? Emerald ash borer (EAB) is a non-native insect transported from Asia to the US and identified in Michigan in 2002. EAB feeds on the tissue of ash trees between the bark and sapwood and disrupting the nutrient and water flow of the tree, eventually killing the tree after several years of feeding in the trees. […]

Continue Reading

Oak wilt in Minnesota: updated fact sheet and resources

Tree care professionals, woodland owners, and urban natural resource managers are greatly concerned with managing oak wilt across Minnesota. Oak wilt is responsible for killing large numbers of oaks annually across the state. A recent confirmation of oak wilt in Morrison County near Little Falls makes it the most northwestern find in Minnesota. Researchers and forest health specialists from the US Forest […]

Continue Reading

Pollinators – Keeping Our Forests Abuzz and Healthy

By: Jodie Provost, DNR Private Land Habitat Coordinator The news is abuzz about pollinators these days and for good reason. When the insects that pollinate one third of our U.S. diet decline dramatically, it’s time to take note! Wildlife pollinators are responsible for assisting over 80% of the world’s flowering plants, creating healthy ecosystems. These creatures include birds, bats, insects […]

Continue Reading

How to recognize common diseases of oaks in the Midwest: a quick guide

A new publication from the US Forest Service-Northeastern Area, State and Private Forestry can help forestry professionals, homeowners, and others identify common diseases to oak trees in the Midwest. How to recognize common diseases of oaks in the Midwest: a quick guide discusses the common diseases of oaks and associated tree symptoms and presents excellent illustrations of the diagnostic features […]

Continue Reading

Diseases and Insect Pests of Conifers (Evergreen trees) – by species

Douglas-Fir (Pseudotsuga): Armillaria Root Disease USFS Armillaria Root Rot Christmas Tree Pest Manual (USFS) Disease Management Recommendations for Trees and Shrubs (Swiss Needlecast) Dwarfmistletoe of Douglas-fir Insecticide Suggestions to Manage Landscape Tree and Shrub Insects HOW to Identify and Control Rhabdocline and Swiss Needlecasts of Douglas-Fir (USFS) Fir (Abies): Armillaria Root Disease USFS Armillaria Root Rot Christmas Tree Pest Manual […]

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 Invasive Blitz Workshops: June 25th and June 27th

June 25 in Brainerd, MN & June 27 in Schroeder, MN Calling all volunteers from the Minnesota Master Naturalist, Master Gardener, Forest Pest First Detector and other programs! As you know, invasive species such as buckthorn, garlic mustard and wild parsnip pose serious threats to Minnesota’s natural resources, ecosystems, and economy. We want YOU to join in a statewide effort […]

Continue Reading