Minnesota Tree Care Advocate People Helping Trees Help Communities - - PowerPoint PPT Presentation
University of Minnesota Department of Forest Resources Minnesota Tree Care Advocate People Helping Trees Help Communities From Seedling to Mature Canopy TIPS FOR OUR URBAN FOREST CARE Ashley Reichard, Volunteer Programs Coordinator - 2019 WHY
People Helping Trees Help Communities
University of Minnesota Department of Forest Resources
Ashley Reichard, Volunteer Programs Coordinator - 2019
Bur Oak 250+ Years Silver Maple 125+ Years Boxelder 100+ Years Jack Pine 80+ Years Paper Birch 65+ Years Suburban Landscape Trees 30-40 Years Urban Core Tree 7-10 Years
Figure 2. Urban core landscaping. Figure 3. Suburban landscaping.
Fraxinus pennslyvanica and Fraxinus americana
General Characteristics Bark: Gray/brown interlacing “diamond” patterns. Twigs: not as stout as black ash. Leaves: opposite, pinnately compound with 5-9 leaflets, leaflets have petioles (not sessile). Seeds: 1-2” single samara, “wing” stops where seed begins, seed is round in cross-section.
Photos: Dave Hanson
Code: FR
winged leaflet stalk. Ash flower gall is very common
(Code: FRPE) (Code: FRAM)
no wings on leaflet stalk.
Figure 16. Using the box-cutting method when planting. Figure 17. Checking depth when planting a bareroot tree.
1st Main Order Root Graft Union Soil Line
Figure 8. Anatomy of a nursery stock tree. Figure 9. Comparison of where soil line was and where it should be. Figure 10. Example of a soil ball after excess soil was removed
Figure 12. A dysfunctional root system. Figure 13. A buried root system after correction. Figure 11. Using the box-cut method to correct a containerized tree.
Figure 18. Volcano mulching – No! Figure 19. Donut mulching – YES! Figure 20. Removing excess mulch from a tree that has been buried.
Critters Mowers Weed whips Cars
drainage hose, plastic, burlap, snow fencing, etc.
Figure 22. Fencing as protection. Figure 23. Grow tubes as protection. Figure 24. Mechanical damage. Figure 25. Critter damage.
Figure 26. Three stake system.
Newly Planted Trees As suggested by Gilman, Black, and Deghan (1998), newly planted trees need about 1-1.5 gallons
2” Caliper x 1.5 gal. /inch = 3 gallons per dose (2 cents per irrigation) Established and Mature Trees The critical root area (the root area that takes up most of the water) is calculated by using a ratio
radius from the trunk base. The calculations for 10” and 30”DBH established trees are: Established: 10” DBH x 1.5 feet per inch DBH= Radius (r) = 15 foot radius Mature: 30” DBH x 1.5 feet per inch DBH= Radius (r) = 45 foot radius Extending from the base of the tree, the radius should account for most of a tree’s root surface area.
“How much does it cost to water this tree?” by Adam Flett, advisors Gary Johnson & John Lamb
http://www.mntreesource.com/uploads/2/0/7/0/20706756/how_much_does_it_cost_to_water_this_tree_edited.pdf
Watering Bag
Figure 27. Watering devices for trees.
Watering Ring Watering Well Tree Diaper Watering Tape
Based on the City of St. Paul water cost and calculations
Shoot is to the left of the arrow, spur to the right Flower buds on pear and apple trees
Acknowledgements Michael Bahe Callissa Cloutier Dustin Ellis Sam Graf Gary Johnson Jen Kullgren Valerie McClanahan Alex Miller Ryan Murphy Eric North Monica Randazzo
www.extension.umn.edu/distribution/horticulture/dg0628.html
www.myminnesotawoods.umn.edu/2009/12/tree-stem-protection/
www.na.fs.fed.us/spfo/pubs/howtos/ht_prune/htprune-rev-2012-screen.pdf