Gina1960,
for getting back so fast. Very nice to have you around to answer many questions and share years of hands on knowledge. Really nice examples shown of plants as examples of how each variation occurs. Virus found in many plants have been used to create new modifications or clones for variegated plants. Always makes it interesting.
Small article on how tobacco mosaic virus transferred to tomatoes, cucumbers, peppers and many flowers in the Solanaceae family. Many times insects as you mentioned can also infect food crops. Like they have spread the virus on my dahlias. Which makes it difficult to show my dahlias and I used to sell them at the local market. Not all virus' are equal, some can be used to breed variegated plants while others are a death sentence.
https://meadowandthicket.ca/wo...
https://www.missouribotanicalg...