Beans can be affected by these types of pests, and even by much worse pests. A very easy way to identify bean plants camouflaged among weeds is that they usually have a branch protruding toward the surface, which distinguishes them from the weeds. Also, something that has often happened to me is that, if we don't want to pull these plants out with a hoe, we can do it by hand and thus avoid pulling them out. Thank you, friend, for such a constructive and interesting post.