Powdery Mildew-Echinacea-Advise Please
I have been battling PM most of the summer on all of my echinacea.I must have inadvertently spread the fungus while deadheading and not cleaning my shears...OOPS!
Once I realized what it was I began spraying weekly with Daconil, it did not help. A few weeks ago, after searching the internet for advice, I cut most of the plants back to the ground. I did not cut back of a few plants that were planted together in which a green lynx spider had chosen as her home to lay her eggs. ;0)
I try to only select plants for my garden that are low maintence, I try as much as possible to garden organically and I have not had any problems with echinacea in my prior garden. I have a few questions:
Should I expect to see my echinacea again in the spring, or did I surely grant them an early death?
Should I now cut back the others that the spider had nested in?
Is the soil around the plants contaminated? Should it be spayed as well or will the soon to be winter take care of that?
Any expertise is greatly appreciated, as I am tired of torturing the poor echinacea...