We planted a few wax myrtle bushes (because we were told how easy they are to grow) along a fence, and are finding many leaves being eaten up, particularly new growth, but older leaves, too. Sometimes we find a little green caterpillar inside a curled-up leaf. We were told we can continue to search for these caterpillars and kill them, but now we're at a point where the purpose of planting the bushes (screen) is being defeated.

The same thing is happening to two lemon bushes in a totally different area on the property. And some camelias, too.

A nursery suggested using Captain Jack. I wonder if a spray would work as we've been having very wet mornings. Any insight or suggestions would be appreciated. We're in Santa Cruz, CA, close to the coast.