Viral disease
Tomato Mosaic Virus
A virus that mottles tomato leaves light and dark green and stunts the plant. There is no cure.
Symptoms
- Light and dark green mottled (mosaic) pattern on the leaves
- Distorted, curled or fern-like leaves
- Stunted plants and patchy ripening fruit
What causes it
The virus is very stable and spreads on hands, tools, clothes and infected seed.
What you can do
- Remove and bin infected plants; do not compost them.
- Wash hands and clean tools after handling plants.
- Grow resistant varieties.
Not sure it's mosaic virus?
Photograph one affected leaf and Plantulus will suggest the most likely problem, with a confidence score. It's free and needs no sign-up.
Check a leaf photoOther tomato problems
General guidance only, not a diagnosis. Check product labels and local rules before using any treatment, and ask a horticultural specialist if a valuable plant is struggling. See the disclaimer.