Garden Pests and Diseases: Sick Pulmonaria please help, 1 by roundshm

roundshm wrote:
I originally posted this in the perennial forum but only got one response. I am getting really concerned that my pulmonarias have some type of virus. If that's the case I don't want it to spread to the rest of the plants in this bed. I don't know what's wrong with them. They receive some very dappled sunlight in the afternoon, are in well-drained, fertile soil. They get plenty of moisture from the sprinkler system. The new foliage is all crunched up (how's that for a scientific description?). I have 4 plants in the this bed and all 4 seem to be experiencing the same thing. I can't find any signs of insect damage. It doesn't look like powdery mildew, but I could be wrong. I don't want to start randomly treating these plants with insecticides or fungicides when I don't know what the problem is. Any advise would be really appreciated.
Thanks,
Christine