Q.What Kind of Bugs
I have Kentucky Wonder beans growing up along a fence line in our backyard. The grass has all been taken out. But my problem is bugs are eating the beans! How do I know what to put on the beans to keep bugs off if I don’t even know what kind of bugs is eating them?

Certified GKH Gardening Expert
Most actual bugs are all susceptible to insecticide, so you can treat the plants with an insecticide (organic or chemical) and it will kill the bugs, but I am not sure that it is a bug that is after your beans.
Bugs tend to attack stems and leaves rather than the beans. If you are not seeing the "bugs" then it very well could be slugs or rodents who are doing the damage. They come out at night, so you would not see them on the plants during the day. These articles will help:
https://www.gardeningknowhow.com/plant-problems/pests/facts-about-slugs-and-how-to-kill-garden-slugs.htm
https://www.gardeningknowhow.com/plant-problems/pests/animals/garden-mouse-control.htm