Phellinus pini | < = 1 conk cluster along trunk | > 1 conk cluster along trunk |
Peridermium harknessii | < 25% trunk circumference | > 25% of trunk circumference |
Phaeolus schweinitzii | absence | presence |
Ganoderma applanatum | absence | presence |
heartrot in hardwoods | < 33% strength loss | > 33% strength loss |
Bark beetles in pines | absence | presence |
Physical deformities | absence | presence |
Lean | absent | > 10 degrees |
Size | increasing size raises risk | > 25 “ dbh suspect |
Health | high vigor | low vigor or death |
Species | native | non-native |
pines | all tiers | dominant (other pines present) |
associates | understory (pines present) other tiers (pines absent) | dominant, co-dominant, or intermediate with pines present |
Tree density (sq ft/ac) | BA = 50 to 200a | BA > 200 or BA < 50 if recently isolated trees |