Cool to cold
Poplar deciduous
|
Present
|
Teliospores
|
Very low
|
Very slow
|
Mild
|
Cool to cold
Poplar deciduous
|
Absent
|
Urediniospore survival (facultative)
|
Very low
|
Slow to very slow
|
Mild
|
Mild
Poplar deciduous
|
Present or absent
|
Urediniospores or teliospores
|
Low
|
Slow
|
Mild
|
Mild, poplar deciduous or semi-deciduous |
Immaterial |
Continued
production of urediniospores |
High |
Very rapid |
Very
adverse |