Buy beneficial nematodes from Plants Alive, you mix them with water and water below the worst offenders, rose bushes, crepe myrtles, grapes. Do this early fall and again in spring, they eat the grubs and you get a lot less. Secondly take a bowl of soapy water out in the early am when they are not active, and shake off as many as you can they die in water then discard them, (full size crepes you are out of luck). I used to have thousands, and tried those yellow traps, just made the whole
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problem worse. Last 3 years after doing the above I have not seen one. Of course the very wet winters helped as well as it drowns the grubs.
Ohio State University researchers say they will stay away from "ageratum, arborvitae, ash, baby's breath, garden balsam, begonia, bleeding heart, boxwood, buttercups, caladium, carnations, Chinese lantern plant, cockscomb, columbine, coralbells, coralberry, coreopsis, cornflower, daisies, dogwood (flowering), dusty-miller, euonymus, false cypresses, firs, forget-me-not, forsythia, foxglove, ...»