I found a little green catepillar on my bush bean leaves and another on radish leaves. Is this a cabbage looper? How do I eliminate them, naturally? I see suggestions of using BT on them. Now call me funny, but I do not want to use anything that can kill something on something I am going to ingest.

Where should I look for them? How fast do they reproduce and how did they get there?

Thanks!

P.S. I posted this on the vegetable forum, but everyone is very helpful here.....