1. Tree and Shrub Fertilizer
Arbor Green® PRO
Tree and Shrub Fertilizer

2. Inspired by Nature Davey Arbor Green® PRO The Davey Institute has
researched the natural soil
conditions of the forest floor and recognizes the challenges of the urban
forest soil.
Arbor Green PRO
mimics nutrient delivery as
seen in the natural forest
environment.
Microbial release of nutrients
3-1-1 nutrient ratio
Low salt index
Long term nutrient buildup

3. Davey Arbor Green® PRO Why Fertilize? Forest Trees Urban Trees
Recycle nutrients
Build soil over time
Urban Trees
Little or no recycling
Disturbed soils & sub-soils
Turf competition
Limited natural nitrogen
Urban Trees have had the natural nutrient recycling disrupted. In most cases nitrogen and other nutrients are being removed from urban environment with leaf and litter removal. Suboptimal conditions are the norm, not the exception.

4. Optimal Soil Nutrients will:
Davey Arbor Green® PRO
Optimal Soil Nutrients will:
Hasten maturity of young trees
Maintain health & vigor of trees
Rescue declining trees
Cure nutrient deficiencies

5. Davey Arbor Green® PRO Arbor Green PRO Key Benefits
Developed by a tree company for use by tree companies
Patented formulation
Backed by Davey
Untreated
Treated
Key Benefits
Superior performance
Use 25% less nitrogen
Lower cost application
Tree Growth Comparison
Trial on established trees
Length of trial – 3 years

6. Patented Formulation PPA – Polyaspartate
PPA amino acid improves
nutrient availability.
Compared to humates, PPA
has 3 to 4 times as many
nutrient holding sites per
particle.
Result:
Less fertilizer needs to be applied.
The lower application rate addresses environmental stewardship and lower cost.

7. Slow Release Nitrogen
Davey Arbor Green PRO nitrogen source contains 66% water insoluble nitrogen (WIN), which provides uniform slow release rate.

8. Slow Release Nitrogen Nitrogen Release Mimics Natural Organics
Charts adapted from Nu-Gro.

9. Slow Release Nitrogen AGP Compared to Other Slow Release Nitrogen
Excess soluble nitrogen can over-stimulate vegetative growth possibly upsetting root to shoot balance. Succulent new cell growth may have weak cell walls leading to damage by insects. Excessive new growth can take away nutrients used by the plant to produce natural plant defenses used to protect against insects and disease.
Charts adapted from Nu-Gro.

10. Microbial Breakdown
1. Microorganisms utilize the carbon in ureaform and release the nitrogen for the plant.
2. Because this is a biological process, it slows in cool and/or dry soils.
3. The biological release rate reduces nitrogen leaching.

11. Building the Soil Percent of Soil Nitrogen Over 7 Years
Nitrogen in Davey Arbor Green PRO will remain in the soil at a significantly higher level than conventional fertilizers resulting in more uniform growth response and healthier plants.

12. Low Salt Index A Low Salt Index Means Low Burn Potential
Arbor Green PRO
is ideal to use on sensitive, newly planted, drought-stressed, or trees in decline. The AGP salt index is 10 or less compared with other products at 15 to 120.
Before
After

13. Arbor Green PRO 30-10-7 Patented Formulation Use 25% less nitrogen
Long lasting
Two year application rate
Improves nutrient holding
capacity of soil compared
to conventional fertilizers
with humate additives
Low Salt Index (less than 10)
Non burning – not only for
use on normal trees but
also newly planted,
stressed, and declining
trees. Also for use on
shrubs.
Low Leach Potential
Cost Effective

14. 30-10-7 Product Specifications
Nitrogen Source
Ureaform: poly-urea (carbon-based nitrogen)
Potassium and Phosphorus Source
Monopotassium phosphate (food grade)
Amino Acid Source
Potassium Polyaspartate
Salt Index
Less than 10
Weight
30 pound bag

15. Arbor Green PRO 30-0-10 Non-Phos
Non-Phosphorus Formulation
Meet regulatory environment conditions
Especially for use near water
Use 25% less nitrogen
Long lasting
Low Salt Index (less than 10)
Non burning – not only for use on normal trees but
also newly planted,
stressed, and declining
trees. Also for use on
shrubs
Low Leach Potential
Cost Effective

16. 30-0-10 Product Specifications
Nitrogen Source
Ureaform: poly-urea (carbon-based nitrogen)
Potassium Source
Potassium Sulfate
Amino Acid Source
Potassium Polyaspartate
Salt Index
Less than 10
Weight
30 pound bag

17. Arbor Green PRO 30-10-7 Packets
Use For:
Fertilizing small caliper trees, shrubs and potted plants.
When planting small caliper trees, shrubs, potted and other landscape plants.
Easy-to-Use. No Mixing
Tear open the packet and disperse directly in planting hole or directly on soil near the plants. Water in.
Easy to Measure
1 dbh inch tree: 1 packet
2 dbh inch tree: 2 packets
3 dbh inch tree: 3 packets
Packaging
48 packets per display
2 displays per carton
96 packets per carton
Note: Same patented formulation as AGP in 30 lb. bag.

18. Application Basics Product Characteristics Equipment Requirements
Suspendable formulation
Indefinite shelf life
Non-hazardous
Non-corrosive
Odorless
Pathogen free
Weight – 30 lb. bags
Pallet – 40 bags
Equipment Requirements
Conventional spray equipment
Agitation
Paddle agitation or
Jet agitation with Venturi nozzles
Standard soil injection probe with 4 lateral ports on tip.
FMSC 785 or other standard spray gun attached to injection probe.
150 to 200 psi

19. Tank Agitation Spray tank should be equipped with sufficient agitation
to maintain fertilizer
suspension.
Mechanical paddle
agitation is
recommended. 

20. Mixing Rate
One Year Rate
Mix 15 lbs. (1/2 bag) of Davey Arbor Green PRO in 100 gallons of water.

21. Mixing Procedure
Fill the tank with water and engage the pump during fill-up. 
Add fertilizer slowly, in 5 lb. increments, to the water to ensure proper suspension.

22. Re-suspend
Use soil-probe to re-suspend the material. 
Avoid agitation paddles

23. Calibration
With 300 ft of ¾ inch diameter hose, there is a pressure loss of approximately 5 psi per 50 ft of hose, so the pump pressure should be set at a minimum of 150 psi. 

24. Calibration 1. Collect fertilizer solution
2. Record time to collect ½ gallon
3. This should be about 4 seconds.
4. Increase or decrease pressure to be near 4 sec.

25. Tree Application 1. 50 gal. /1,000 sq. ft 2. Under canopy
3. Apply one-half (1/2) gallon of suspension per injection. Approx. 4 seconds
4. Space injections three (3) feet apart.
5. Inject to a depth of 4 to 12 inches.

26. Application – Liquid Injection
Sub-surface injection helps break-up compaction.
Sub-surface injection applies fertilizer where the roots are.
Start injection below the turfgrass roots to avoid competition
for nutrients.

27. Application - Liquid Injection
places the fertilizer
in contact with
roots.
Granular fertilizers
require irrigation to
move those
fertilizers to the
root zone.

28. Tree Application Pattern
3-foot centers
under tree canopy to dripline.
Grid or circles
Avoid trunk and root crown to minimize mechanical damage to trees or shrubs.
Avoid trunk and root crown to minimize mechanical damage to tree/shrub

29. Incorrect Application

30. Shrub Application Injection Apply 1/10 gallon per injection
Two (2) feet between injections.
1 second per injection

31. Shrub Application Packets
Disperse contents of packet around base of shrub or plant according to label instructions
Water in.

32. Arbor Green PRO Support
Product Information
Brochures
Product Sheets
MSDs
Labels
Business Development Recommendations
Trade Advertising
Trade Show Support
Website Information
Nationwide Field Service Support
Distribution Solutions

33. Backed by Davey
Arbor Green PRO was created, developed, and patented by scientists at The Davey Institute who are committed to innovation and environmental stewardship.
Products like Arbor Green PRO are an example of the next generations tools being developed by Davey to nurture and protect trees and landscapes and enhance the overall value of properties and communities we live in.

34. For further information regarding
Thank you
Thank You
For further information regarding
Arbor Green PRO
Contact:
David Fritz
.com