Hi, thanks for the question.

Looking at the pictures, the whiteish speckling could be thrip damage.  The big fear is that they vector Tomato Spotted Wilt Virus.   These critters can be pretty small so you may need a hand lens to see them. You can also shake the foliage to dislodge the unwelcome guests over a light piece of paper and see them moving around on the paper.  If you cannot verify their presence, we may need to do some more investigating.  Controlling nearby weeds will reduce local populations.  Insecticidal Soap, neem oil, or light weight horticultural oils can be effective. Check out the following links for details and more information:

Thrips Management Guidelines--UC IPM (ucanr.edu)

Tomato - Western Flower Thrips - Cooperative Extension: Insect Pests, Ticks and Plant Diseases - University of Maine Cooperative Extension (umaine.edu)

Watch for Thrips and Mites in Vegetables | University of Maryland Extension (umd.edu)

I hope this helps.

Hi again,

These are all aphids, those with wings, dark and green, small and large.  Thes can be removed by a stiff spray of water, or you can use the neem oil or the insecticidal soap on these, but it must contact the insects.  You can also squish them. Aphids can multiply rapidly so it is important to control them as soon as you see them. I did not notice any eggs.  The earlier damage was probably not the aphids.  It could have been some sun damage (usually noticed if suddenly exposed to too much sun). Another possibility would be flea beetle damage but one would expect some small holes on the leaves. If you see tiny black insects jumping off your plants when you brush your hand over the plant, flea beetles could be present. Check out these links:

Integrated Pest Management (I.P.M.) for Aphids | Home & Garden Information Center (clemson.edu)

Aphids in home yards and gardens | UMN Extension

Flea beetles | UMN Extension