Table 1 Percent of stem decay by species in central Park.
SpeciesNumber sampled% of decay
Planetree, London (Platanus × acerifolia)60
Ailanthus (Ailanthus altissima)267.7
Crabapple (Malus sp.)2512.0
Oak (Quercus)
  Pin (Q. palustris)375.4
  Red (Q. borealis)436.9
  Turkey (Q. cerris)1643.8
  Weighted mean of oaks12.5
Ash, white (Fraxinus americana)7812.8
Locust, black (Robinia pseudoacaiaj7416.2
Hackberry (Celtis sp.)3616.7
Maple (Acer)
  Planetree (A. pseudoplatanus)639.5
  Norway (A. platanoides)13320.3
  Weighted mean of maples16.8
Ginkgo (Ginkgo biloba)2817.8
Hawthorne (Crategus sp.)2030.0
Cherry, ornamental (Prunus sp)3234.3
Weighted mean of all trees with stem decay16.2