I don't know what you mean by "fairly organic," so I'm going to give you my best treatment idea. First pick off the little buggers then apply Sevin. You said "fairly..." Next, here is a link to a very good article on these beetles with reference to physical traps. Good luck. http://extension.usu.edu/files/publications/factsheet/cucumber-beetle08.pdf

As far as I've heard, your stomach acid does a pretty good job on lots of things. Stuff that is bad for you (listeria, e.coli, etc) doesn't come from nowhere, it comes from contamination with feces, human typically. And direct sunshine can do a good job killing some of those, as well. If you have an immune disorder, then be more careful. Otherwise, I'm sure that cucumber is cleaner than anything you pick off the grocery store shelf that has been handled by several people, at least.

WIrosarian is correct and it's pretty much like asking what can I plant that the deer won't eat? The answer is, it doesn't matter much because it depends on what they feel like that evening and if they can reach it, it's fair game. Same with the beetles, which begins here with rose chafers, different in appearance to JB's but oh, so alike in appetite. RC's emerge same time as the first roses begin to bloom. Early or late, I don't know how they time it but they time it right. Yellow's are goners for sure, followed by white and pink roses. Fragrance simply draws them in like a magnet, all of which means my old garden roses get devoured. Reds and dark colors will get eaten sometimes too, poor Bayse's Purple and scarlet red Eddie's Jewel this year being prime examples of apparently delicious petals. After a month or so of the rose chafers, the JB's continue the assault, basically following the same preferences. My poor Polereis has not had an undamaged bloom all year. And some roses like Morden Sunrise have leaves that are entirely skeletonized. Yes, once they've found your garden, more beetles will come. They send out chemical signals to advertise the bounty they've discovered. But do you know which rose in my garden seems untouched by either evil beetle? Yup, the Double Knock Out that the previous owners had planted. Figures, doesn't it? And so far, neither bug is interested in my daylilies. Small wonder why the number of DL's I grow is fast approaching and ready to surpass my roses! At least diverging into other collections allows me to separate and mix the roses in between other plants. Sometimes that helps a few rose blooms to escape detection here and there. My worst garden for damage is the strip along side the garage (facing east and prime rose territory) where I planted a long bed of mixed yellow rose varieties and purple and blue tall bearded iris behind. This was planned and planted before I realized the rose chafers here in the village are just as bad as they were out in the country where I was surrounded by hundreds of acres of fallow fields (their prime breeding ground.) And it was before I knew I ALSO had Japanese beetles here to contend with. That bed will have to be dug and redone at some point because it's just too painful to see all the damage there in a row with nothing else to look on. Cheery, no? Still, I continue to tend my (fewer) roses and hope for the best. Maybe NEXT year, the beetle count will be lower and I'll see more blooms....hope (and gardening) springs eternal!

I think I figured out what I have. Bean Leaf Beetles: Bean Leaf Beetle (Cerotoma trifurcata): Adult beetles are reddish to yellowish in color, 1/4 inch long, have three or four black spots in a row along the inner edge of wing covers, and a black band occurs near the outer margins of wing covers. Larvae are whitish, dark brown at both ends, segmented, and have six small legs near the head. Adults chew holes in leaves, feeding on them from the under surface; larvae feed on roots, nodules, and on stems just below the soil surface, which can girdle the plant. more pics of them here (they do appear in yellow as well, which might have added to my confusion): http://www.ent.iastate.edu/imagegal/coleoptera/beanlb/blb_yellow_red.html http://www.extension.umn.edu/distribution/horticulture/M1185.html http://www.oznet.k-state.edu/dp_hfrr/extensn/problems/beanleaf.htm They don't seem to kill the plants, for me they've just been a pain in the ass. Luckily, this year (so far) I've seen far fewer than last year. (Though last year was horrible for a lot of things. We had Japanese Beetles everywhere.) It's a very strange thing. I've combed through my gardening books (the main ones being E. Smith's Vegetable Gardener's Bible and Rodale's Encyc. of Organic Gardening) and none of them mention Bean Leaf Beetles. Perhaps I just missed it somehow.