We at Firefly work hard to keep our tools clean so we don’t pass any virus. We dip our tools in a 10% bleach water mixture.
I keep a visual on all plants for changes in growth. Dispose of virus plants.
Do you show dahlias? I do as a matter in fact I am a dahlia judge with the Mn Dahlia society. I try to own 3/4 of the list on the fabulous 50 from ADS.