Scoring
| |||
---|---|---|---|
Factor
|
5 or 4
|
3 or 2
|
1
|
Trunk
|
Sound or solid
|
Sections of bark missing
|
Extensive damage or hollow
|
Growth rate
|
More than 6" twig elongation
|
2" to 6" twig elongation
|
Less than 2" twig elongation
|
Structure
|
Sound
|
1 major or several minor limbs dead
|
2 or more major limbs dead
|
Insects/disease
|
No pest present
|
1 pest disease present
|
2 or more pests present
|
Crown/development
|
Full and balanced
|
Balanced but not full
|
Unbalanced and without full crown
|
Life expectancy
|
Over 30 years
|
15 to 10 years
|
Less than 5 years
|
Common Name
|
Botanical Name
|
DBH
| |
---|---|---|---|
All trees
|
--
|
24"
| |
American hornbeam
|
Ostrya Virginiana
|
8"
| |
Arborvitae
|
Thyja
|
18"
| |
Beech (American)
|
Fagur grandifolia
|
18"
| |
Beech (blue)
|
Carpinus Caroliniana
|
8"
| |
Birch
|
Betula
|
18"
| |
Black walnut
|
Juglans nigra
|
20"
| |
Cedar (red)
|
Juniperus Virginiana
|
12"
| |
Chestnut
|
Castanea
|
10"
| |
Crabapple/hawthorne
|
Malus/crataegus
|
12"
| |
Dogwood (flowering)
|
Cornus Florida
|
8"
| |
Fir
|
Abies
|
18"
| |
Ginkgo
|
Ginkgo
|
18"
| |
Hemlock
|
Tsuga
|
18"
| |
Hickory
|
Carya
|
18"
| |
Kentucky coffee tree
|
Gymnocladus dioicus
|
18"
| |
Larch/tamarack
|
Larix
|
12"
| |
London plane/sycamore
|
Platanus
|
18"
| |
Maple
|
Acer
|
18"
| |
Oak
|
Ouercus
|
18"
| |
Pine
|
Pinus
|
18"
| |
Redbud
|
Cercis canadensis
|
8"
| |
Sassafras
|
Sassafras albidum
|
15"
| |
Serviceberry
|
Amelanchier
|
8"
| |
Spruce
|
Picea
|
18"
| |
Sweet gum
|
Liquidamber styraciflua
|
16"
| |
Tulip poplar
|
Liriodendrom tulipifera
|
18"
| |
Wild cherry
|
Prunus
|
18"
| |
Witch hazel
|
Hamamelis Virginiana
|
8"
|
Ash
| |
Black locust
| |
Box elder
| |
Catalpa
| |
Cottonwood
| |
Elm
| |
Mulberry
| |
Poplar
| |
Silver maple
| |
Tree of heaven
| |
Willow
|