Add the garden to the Asian beetle list.
I grow green beans. Just had some tonight, in fact. Right now everything's fine, but a few years ago I had Japanese beetles get to my bean crop. Not only are they impossible to get rid of and multiply like mad, but they also ruin your plants. I think I got one or two good servings of green beans that year before the invasion happened--normally a group of 25 plants is good for about ten meals.
And that's another invention I wouldn't mind--green bean plants that produce more and can tolerate the cold better. It seems that around September the plants I put in during May are no good anymore. Even if they still were good, the Pennsylvania cold would wipe them out by mid-October anyway.
I've grown beans since 1997. It's a pretty fun hobby and you get food out of it too.