The larvae for the ladybugs ALSO eat pests. I was in a bad place when I gave that advice. If you do the reading ladybugs have been used in commercial food grows for a LONG time. There’s 10’s of thousands of articles out there supposing it. BUT the best proof is the results. Glad they worked for you.
Yes they have been working out better than any spray. I really love seeing there life cycle happen with my plants.
I planted 2 each of the above beans. Lets find a keeper in a 2 bean hunt.