animaux wrote:
I'm not double blind, but I brought a brugmansia which has had
tobacco mosaic virus for at least 5 years, steadily looking
awful and now has not one detection of the virus either by eye,
or under the microscope.

You tell me.

I think that viruses are too small to be seen by an ordinary microscope.

--
Travis in Shoreline (just North of Seattle) Washington
USDA Zone 8b
Sunset Zone 5