Stem Girdling Roots: The underground epidemic killing our trees

Download Stem Girdling Roots: The underground epidemic killing our trees (PDF) Gary Johnson, Professor, Urban and Community Forestry, Department of Forest Resources, St. Paul, MN; Dennis Fallon, Vegetation Management Coordinator, Xcel Energy; Andrew Rose, Creative Director, Hand/Eye Communications. How many trees die prematurely each year? Thousands? Millions? Billions? It’s almost impossible to pinpoint, but one unseen culprit – dysfunctional (abnormal) […]

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Sidewalk and Tree Conflicts

To Care for Trees IS to Care for Sidewalks By Becky Mellentin and Lorrie Stromme, reviewed by MPRB. Based on research from May through July, 2000, by Northeast Minneapolis residents and property owners, and with cooperation from Minneapolis Public Works, the Minneapolis Park & Recreation Board and its Forestry Division. Work on public sidewalks, curbs, and driveways by City-hired and private […]

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Winter Damage to Trees and Shrubs: Good sources of info

It’s not just the cold!  Trees also have to survive salt, ice, de-icers, hungry wildlife, and more.  Here are a few good pubs on preventing winter damage to trees from these and other sources: Protecting Trees and Shrubs Against Winter Damage, a publication by Bert T. Swanson and Richard Rideout, University of Minnesota. This publication discusses damage to trees from […]

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Minnesota Law and Trees

A Layperson’s Guide Note: These fact sheets pertain to the law in Minnesota at the time of their writing in the mid 2000s. The information they contain may not necessarily apply in other states, and they have not been updated since their initial publication. The information included in the fact sheets is intended to be educational, not legal advice. If you have […]

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Will Fill Kill?

The truth about adding soil over the roots of existing landscape trees. By Rebecca Koetter and Gary R. Johnson No, the title “Will Fill Kill?” has nothing to do with people’s propensity to stuff their digestive systems during Thanksgiving! Instead, it directs attention to the three most common questions from homeowners about relandscaping and construction activities around their trees: What […]

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How to Plant a Tree

Stephen Schott, Graduate Research Assistant, University of Minnesota Department of Forest Resources Planting a tree is a great investment that pays off in many ways.  Trees add value to property, lower utility bills, and are beautiful to look at.  However, for a tree investment to pay off, it needs a strong start.  This begins with a good planting.  If poorly […]

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The Well Planted Tree

A document produced by Krystal Schaufler, Doug Courneya, Gary Johnson, Jeff Gillman, Patrick Weicherding, Carole Kinion Copeland Click to view document as a PDF: The Well Planted Tree This document touches on the following tree planting topics: How to plant containerized trees How to care for a new tree What happens if a tree is planted too deep? What are […]

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Forest Health: Overview

Forest health is affected by insect outbreaks, diseases, invasive species, regeneration, fire ecology, natural disturbance, and many other factors. Not all insects and diseases are bad. Native insects and diseases are a normal part of a healthy forest. An example is the periodic defoliation events from forest tent caterpillars (sometimes called armyworms). Minnesota forests evolved in the presence of these bugs, […]

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