Any of the organic pest control sprays would work. Flea Beetles are what normally bother green beans.
https://www.planetnatural.com/pest-problem-solver/garden-pests/flea-beetle-control/
Excellent, many thanks! Knew you would have the knowledge. :-)
Do you know if there are any varieties of flea beetle that are green, though? My research so far hasn’t found any . . . These monsters almost look like very small stink bugs, except they’re lime-green. So frustrating!.