Reminds me of various insects called "slugs" in larval stage. They cover themselves with excrement for protection. Examples are pear slugs and rose slugs.

Direct hits of insecticidal soap could work. But search-and-destroy would be a fail-safe method.

I did a search-and-destroy, pulling off every leaf I could find with gooberpoop covered bugs or eggs. I believe I have some sort of lema spp three-lined potato beetle. The larvae pile their poop on their backs. This is one insect I will never, ever taste. Bleccch.

Here is a link that might be useful: lema spp bugs

These are the larval and egg stages of leaf hoppers. Nasty things, and they seem to love plants in the Solanaceae family. Mine always get them at this time of year. I keep them under control (somewhat) by removing every leaf that has them on the undersides and stomping them flatter than flat.

OOPS!! I meant that these are the larval and egg stages of those potato beetles. The leaf hoppers look different, but also love the brugs. Good luck!

Renee, get rid of them quickly! A couple of years ago, they attacked one of my brugs and then moved to another. They reproduce continuously and quickly, and can devour the plant in no time. I sprayed with water, safe soap and squashing what I could, and eventually they disappeared.

I got three more adults today and two leaves with eggs. No new gooberpoop larvae. If I see too many more, I can cut this brug to the ground. It's about due for a refreshing.
Renee

Please post images of the adults. The larvae are quite different than potato beetles.

Here you are, Jean!
Adult Lema daturaphila
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Eggs:
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