How big is it? If very small -- as in 1/8 inch, may be a whitefly but, ti=o tell the truth, doesn't look right. Then, again, it sort of resembles a lacebug -- but again would have to be very small. Bottom line -- what is it doing? Could just be resting there while on it's way to somewhere else. Further, if only one or a few, flick into soapy water.

That is a really extreme leaf miner infestation. This is the wrong time of year in most of FL for tomato plants anyway. Most of us pull them up when they're done in May or June and are just starting new plants now. When you just have a few leaf miners you can deal with them by removing the infected leaves. I'd pull your plants and start over, assuming you aren't up in Jax or the panhandle. If you're that far north, plan on the spring for starting again.

Unfortunately I think you're right, everything I've searched for so far points to herbicide damage. It's completely my own fault too I think. I thought I was careful and and was avoiding drift. Thanks for the sites though they're really helpful. I still can't figure out if my plants are salvageable or if I should tear them out and plant new. I don't want to keep growing them if they've been permanently damaged or unsafe to consume.

The white dots are salt deposits left behind when sap that makes its way to the leaf surface evaporates. ..... not sure what caused the brown, crusty patches on the epidermis. It could be any number of things: sunburn (photo-oxidation), something phytotoxic landing on the leaves (like hair spray or mist from a spray room deodorizer), air pollution (smokers in the house?), over-watering/oedema, a cleaning agent that might have been used to remove dust from leaves ....... Really - there's not enough info to make a meaningful diagnosis. Al