Scientific name Common name Geographic distribution Number of trees sampled Canopy index5 Bark splits6 Percentage of infested trees (%)7
F. americana White ash Eastern North America 22 2.09±0.33 bc 0.59±0.11 ab 59.09±0.11 ab
F. pennsylvanica1 Green ash Eastern North America 25 3.72±0.32 ab 0.84±0.07 a 84.00±0.07 a
F. velutina Velvet ash Western and southwestern North America 17 4.35±0.28 a 0.88±0.08 a 100.00±0.00 a
F. excelsior2 European ash Western Palearctic (Europe, north Africa and southwest Asia) 7 3.71±0.52 ab 0.86±0.14 a 85.71±0.14 a
F. mandschurica Manchurian ash Eastern Palearctic (central and east Asia) 13 1.31±0.17 c 0.15±0.10 b 7.69±0.08 bc
F. chinensis3 Chinese ash Eastern Palearctic (central and east Asia) 17 1.71±0.38 bc 0.29±0.11 ab 17.65±0.10 bc
F. hubeiensis Hubei ash Eastern Palearctic (central and east Asia) 3 1.00±0.00 c 0.00 b 0.00 c
F. baroniana Narrow-leaf ash Eastern Palearctic (central and east Asia) 5 1.00±0.00 c 0.00 b 0.00 c
F. bungeana4 Small-leaf ash Eastern Palearctic (central and east Asia) 1 1.00±0.00 0.00 0.00