Joined: Sep 2007
Posts: 1554
Nasturiums and/or catnip repel cucumber beetles. Catnip also works for potato beetles. Companion planting not only helps some plants grow better if paired together, but can deter bad insects while not harming the good ones.
If the holes are round, it could possibly be from leaf cutter bees which are beneficial and they will not kill the plants. Could you post a picture of the damage?
Be sure what you are battling before using anything that might kill all the insects...that is why I recommended trying the catnip and nasturiums first. ;)