Who is eating my plants??

Eaten to date: two parsley plants, two calendulas, a tithonia, and a whole planting of pole beans. Whoever does it seems to chew the leaves in to the stems. Here's a picture of the pathetic tithonia, standing tall but entirely leafless.

 

As for the beans, here they are young and fresh and full of hope:

 

and here they are today, almost completely gone.

 

Going online is no help because everyone has a different theory. I think it must be bugs. A rabbit would hardly have eaten the beans in the cedar barrel and left the ones in the ground alone. Time to check Barbara Damrosch and see what she says.