What is this and how do I treat it?

[ScottWhatty]

Living in San Diego and have yet to ever see something like this. Does anyone know what this is and how to treat it?

[rainbowgardener]

Several possibilities including some (probably viral) disease, but off the top of my head it reminds me of herbicide damage. If maybe your next door neighbor sprayed 2,4D or some other plant poison and it drifted over into your yard:

"Tomato plants are highly sensitive to herbicide exposure and the result is twisted, curling leaves." https://bathgardencenter.com/herbicide- ... to-plants/