information links
Why Hire a Certified Arborist?
Benefits of Trees
Insect & Disease Problems
Mature Tree Care
New Tree Planting
Tree Selection
Plant Health Care
Recognizing Tree Hazards
Trees & Turf
Avoiding Tree & Utility Conflicts
Tree Values
Why Topping Hurts a Tree
Pruning Young Trees
Pruning Mature Trees
Avoiding Tree Damage During Construction
Treatment of Trees Damaged During Construction
Proper Mulching Techniques

Agencies:

MPLS Park & Rec.- Choosing A Tree Care Professional
Forest Resources Extension
Minnesota Department of Natural Resources (DNR)
MN-DNR Urban and Community Forestry
Yard and Garden Line (UMN)

Organizations
The International Society of Arboriculture

Minnesota Society of Arboriculture
Minnesota Nursery and Landscape Association
Minnesota Shade Tree Advisor Committee
Tree Care Industry Association
National Arbor Day Foundation

Plant & Disease Diagnosis
Plant Disease Diagnostics (UMN)
Oak Wilt Consultant and Contractor List - Mn DOA
Forest Insect & Disease Newsletter (MN DNR)
Green Maps
PLANTS Data Base
Forest Pathology Organization