Could this be a tomato virus?

Question

My yellow pear tomato plant has clusters of tiny bumps all over the stems, could this be a virus? The tomatoes don't seem to be affected, but I don't know if they're edible.

Answer 1

This is very common in tomato plants. They will try to produce new roots

Answer 2

More than Likely it is roots trying to grow.  Most viruses affect the leaf or the fruit.

Answer 3

If the tomatoes are unaffected, chances are these are rooting nodes.  If you were to remove these stems where the bumps are, you could root them from these nodes.  It is probably the variety you are using just has more of these nodes than you are used to.  If they burst, or the plant is doing poorly, then it would be something else.  But as best as I can get from what you posted, this seems like normal tomato nodes.  I wouldn't eat the stems, nodes or no nodes, but the fruit should be fine.  Hope this helps you!  Good luck!