Found this over in another forum; I really think it is worth trying if you have cucumber beetles. I don't endorse the use of Sevin, and strongly suspect that soapy water could be used in each cup instead (just as one does with Japanese Beetles), with the bait-aroma soaked into a piece of sponge and stapled near the top of the cup. Unfortunately, I haven't been infested with cuke beetles yet, so I haven't been able to test the soapy theory myself. BTW, note that clove oil is easily (and cheaply) found in many health food stores.

OMG, did I say unfortunately??? error, error, error: I am so lucky not have those beetles!

Here is a link that might be useful: cuke beetle trap