Table 4.

The percent of canker initiation on blue spruce branches wound inoculated with isolates of different Cytospora species: Study 2.

Isolate origin	Percent canker initiation^a
Coniferous hosts
Picea pungens	100
P. pungens	92
P. pungens var. glauca	100
P. glauca	100
Larix decidua	0
Pseudotsuga menziesii	74
Deciduous hosts
Acer palmatum	4
Acer platanoides	4
Cydonia oblonga	4
Malus pumila	6
Populus X ‘Robusta’	0
Prunus persica	4
Quercus alba^b	4
Rhus typhina	4
Salix babylonica	0
Salix matsudana^b	8
Control	2

↵a Basis: The number of inoculations resulting in cankers/total number inoculations
↵b 25 inoculations per isolate, all others with 50 per isolate