Is this TSVW on my Santorini? Two weeks ago it was very bushy and well growing and now all the new leaves have these black spots and dried sunken areas. This appeared few days ago on couple of the stems and I thought that it was caused by the epsom-salt spray, but now it has spread on all new growth of this plant and other plants next to it are fine.
I had Verbena cuttings growing in the greenhouse this spring and I had to spray those frequently because of thrips. I read that TSWV affects also on Verbena, so that could be how I brought the virus to the greenhouse.
This is how it looked two weeks ago.
And this is the sad sight today.
Sari