I thought I would give you an update from last year when I lost my Dactylorhiza to the dreaded black death.
I took Maggies advice and dug up a large group of the infected plants up and removed the new tubers. I then soaked them in a solution of 2% household bleach for 24 hours. Nothing ventured nothing gained
They were then planted into a general purpose compost and I hoped for the best.
I now have a group of what appear to be free of the disease. Has the bleach treatment worked or would the tubers have been disease free when I took them from the old plants?
What ever the answer I am pleased to have saved some.
Photos -
1. last year
2. removed tubers
3. this year