Table 4.

Mean canker size on excised aspen branches inoculated with Cytospora chrysosperma isolates from 8 host species.

Host species (isolate no.)1Mean canker length (mm)2
Populus angustifolia (3)2.2 a
Populus acuminata (9)2.2 a
Populus wislizenii (8)3.2 ab
Populus deltoides cv. Siouxland (2)3.9 bc
Populus sargentii (6)4.1 bcd
Populus nigra v. italica (4)4.4 bcd
Salix amygdaloides (5)4.8 cd
Populus tremuloides (1)5.2 c

  • ↵1 Isolates are described in Table 1.

  • ↵2 Mean canker length = mean of canker sizes measured 2 weeks after inoculation. Means followed by different letters are significantly different based on an LSD (P < 0.5), n = 15.