This course fulfills the MN Certified Tree Inspector recertification requirement for 2020. Please complete the course by December 31, 2020 to maintain your Tree Inspector Certification through 2021. Please allow approximately two hours to complete all the components of this course.

This course consists of 12 video segments on best planting practices presented by Gary Johnson, Professor Emeritus, Dept. of Forest Resources, University of Minnesota. You will complete a 20 question quiz and submit your DNR application for recertification to complete the course.  

Link to course will be in your e-receipt. 

Any questions should be directed to Ryan Murphy at treesins@umn.edu


Nursery Stock Types

Depth and Encircling Roots

Performing a Percolation Test

Grow Tubes for Protecting Small Trees

Pruning at Planting

Staking Trees

Soil Compaction

Stem Protection Options

Best Watering Practices

Mulching Trees

Sweating Trees

Planting a Gravel Bed Tree


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Section Title
2020 MN Certified Tree Inspector Online Recertification
Section Schedule
Date and Time TBA
Course Fee(s)
MNTI Register non-credit $0.00
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