Table 2.

Street tree parameters used to estimate impact of EAB in eastern Canada.

CityProvincezData sourceyTrees/km road% Ash% Ash <5 m tall% Ash 5–10 m tall% Ash >10 m tallRatio of backyard to front yard trees% house frontage
BathurstNBS84.44.001000--
BarrieONG100.4----0.9560.3
BracebridgeONS185.70.0-----
ChathamONS, G115.9----0.7562.7
FrederictonNBS123.00.0-----
GuelphONS, G112.76.38.116.275.71.2182.7
HalifaxNSP-0.4---
HuntsvilleONS164.41.500100--
KitchenerONG95.7----0.9874.1
LondonONS97.13.3---
MeafordONS120.88.212.525.062.5
MonctonNBS72.10.1-----
OakvilleONP-9.2---
Ottawa - GatineauONG115.5----1.0568.6
OromoctoNBS149.30.4-----
Owen SoundONS106.26.723.146.230.8
Parry SoundONS50.519.8352540--
Sault Ste MarieONS91.42.25.928.265.9
St. JohnsNFLDP-7.8---
South PorcupineONS-1.7036.363.6
SudburyONS59.04.9---
Thunder BayONG76.8----1.0854.4
TimminsONS124.00.4-----
TorontoONP-7.8---
Averagex107.66.010.434.654.81.067.5

  • ↵zNB = New Brunswick; ON = Ontario; NS = Nova Scotia; NFLD = Newfoundland.

  • ↵yS = street tree survey; G = Google Maps; P = published values. See text for complete details.

  • ↵xAverage is weighted by population size of urban areas.