Scale insects?

I was doing a little routine pruning on my tomatoes plants this morning, stuff near the ground and to clear out a little crowding of leaves. One of the leaves I took off had about 20 scale insects on it. I checked more of the leaves on the tomato, as well as the strawberries and marigolds plants planted underneath and didn’t spot any more. I didn’t have a lot of time this morning before work, so I’ll do a more thorough job this evening.

I don’t often see people talk about scale on tomatoes, and I’ve only dealt with them once before on a small lime tree. I know they can be tricky. Does anyone have any advice for dealing with them if this turns into something bigger? I have ant nests in nearly every raised bed and flowerpot because i’ve got argentine ants, and I know they can make things harder with scale and aphids.