I spray my beans with neem oil as soon as they sprout. Once the bugs get to them it's too late.

With bush beans row covers are also a viable option although it is best place on before the beans sprout.

Perspective: Organic Gardening does not mean "everything runs perfectly like in my dreams"; it means "dealing with what comes the best way we can." Man, have I learned that one.

Gotta have some pests to feed all the beneficials we want to keep around. Also, a coupla bugs munching doesn't hurt. Up to 20% of total leaf surface can be removed without impacting production (as long as it's not leaf crops); actually, some studies suggest that damage to plants increases production as the plant tries to create the next generation before becoming lunch.

Handpick. It's icky, but it works. A collar of cardboard with a leetle hole cut out for the plant has been said to help reduce the number of cucumber bug larvae planted, but I've never tried this.

Not bean beetles?

Not bean beetles?

Can't speak for the OP, but every dang thing wants to eat my beans and they aren't very considerate about sharing with me and my human family.

Mexican bean beetles, cuke beetles, squash bugs and pretty much any other beetle/bug looking thing eventually finds it's way to my beans and then breeds out of control.

Row covers for bush beans and neem oil for pole beans beginning as soon as they push out of the ground is the only way I can grow beans. Oh, and fencing to keep the rabbits from mowing them down in the seedling stage.

Seems every critter in my neighborhood is jonesing for the musical fruit.

This is with growing the beans in a non soil mix in raised beds that is 1 part peat, 1 part vermiculite and 1 part compost in a raised bed treated with trichoderma fungi and nitrogen fixing bacteria. I mention this simply to head off the 'fix your soil' argument some like to make as the answer to all life's problems.

THey are definitely cuke beetles. Yesterday, I found 4 Buffalo Treehoppers in the beans as well, with the increase of winged aphids. Thankfully, I did find 4 ladybugs as well.

If I put praying mantis' in the garden, would they eat the ladybugs too?

I have been squashing the bad bugs when I see them, so hopefully that is helping. I am just thinking of all the eggs that are probably getting laid that I can't see. :o/

I know that all bugs are natural to see, but it just seems I am seeing way more than I should. I would say that about every 5th leaf is has chew marks on it.

Thank you for all the advice! Is there anything else that would benefit me?

The Spotted Cucumber Beetle, also known as the Southern Corn Rootworm, looks kind of like a Mexican Bean Beetle and the two could be misidentified, but they are known to munch on many on many other veggie crops, too. A good control, early in the growing season is floating row covers but once they are present that will only help contain them. Since they are now present the only real control you will have is the broad spectrum poisons Neem Oil or a pyrethrin based product. Use extreme care with these because they do kill many species of insects, both pests and beneficials, including the predatory insects that could help control these pests.
Praying mantids will eat anything they can capture, including each other. They are voracious eaters, however and introducing some to your garden may help.

There is a world of difference between neem and pyrethrins in terms of toxicity to bugs that don't eat plant material. If you have evidence to the contrary I would be interested in seeing it. Yes, it is known that spraying a bug directly or a bug that lands on the liquid before it dries may be affected, but after that a bug has to actually eat plant material to experience toxicity from neem.

Having said that I have used neem against cuke beetles and it simply didn't do a thing for me once the infestation was well underway. Preventative spraying kept them from getting out of control.

justaguy, you kill me! (laughing at your earlier post "can't speak for OP")

Here's a long discussion conducted at Gardenweb last year about controlling cucumber beetles. This method is pretty successful.

And here's another kind of control: Trap Crops for Stink Bugs & Cucumber Beetles.