I have a 4' x 8' raised bed of half-grown Spinach and Mizuna plants that we are using for fresh salads. For some time I have been noticing holes in the leaves of these plants and in some of the other Asian vegetables. Tonight I went out with a flashlight and a bucket of hot soapy water looking for the cause. As expected I collected a dozen or more slugs, but I also found earwigs and a lot of some sort of beetle on the edge of the leaves. The beetle is about one-quarter inch long, light brown and resembles a picture of a Maize weevil I found at the Daves Garden web site. I plan to remove some of the nearby leaf litter and put out beer to reduce the slug population, but am not sure what the best way to control these beetles. Has anyone else seen these on winter greens, and if so, what means of control did you use?

Here is a link that might be useful: Maize Weevil