What's wrong with these bush beans?

[VitaVeggieMan]

Hi folks. This is my first year growing beans. I have 16 plants in one EarthBox, planted per EB instructions. The plants most affected are Bush Blue Lake beans that I bought as seedlings at Home De_pot (Bonnie plants), but it also affected the Purple Queen snap beans that I started from seed (picture 3). I cut off the affected leaves, but other leaves are showing the same signs. The Blue Lakes plants have small 2-3" beans on them now, so they may not be a total loss. The Purple Queen beans have flowers, but no beans yet. The Dragon Tongue beans in the same container have no flowers, and aren't looking great either.

Does anybody know what this might be? Any suggestions on how to stop or slow down the damage?