Evaluation guide for rating tree health symptoms in the field using visual cues.
| Symptoms | Tree condition score | ||||
|---|---|---|---|---|---|
| Overall health | 1- dead | 2- declining | 3- injured | 4- struggling | 5- healthy |
| Crown dieback | 1- entire crown | 2- majority | 3- half | 4- some | 5- healthy crown |
| Girdled trunk | 1- entire trunk | 2- majority | 3- half | 4- part | 5- no girdling |
| Pests or diseases | 1- infestation | 2- evidence across tree | 3- isolated | 4- some evidence | 5- no pests/diseases |
| Swelling | 1- entire trunk | 2- major swelling | 3- minor | 4- beginning | 5- no swelling |
| Leaf scorch | 1- entire canopy | 2- majority | 3- some | 4- occasional | 5- no scorching |
| Wilting | 1- entire canopy | 2- major | 3- some | 4- a few leaves | 5- no wilting |
| Stunted growth | 1- not growing | 2- decline | 3- some evidence | 4- beginning | 5- normal growth |
| Flagging | 1- entire canopy | 2- many brown leaves | 3- some brown leaves drop | 4- occasional brown leaf | 5- normal leaf |
| Sprouting/suckering | 1- greater than ten suckers | 2- five to nine suckers | 3- two to four suckers | 4- one sucker | 5- no suckering |