 Not a lot, like I said, not a lot you can do once he gets in there. If you happen to be a timely and if you happen to be a gardener that's really observant, you'll see when they start feeding on those corn silks. And when they're feeding on that silk, yeah, you can use an insecticide, some pretty basic ones, even some very organic ones. One I always like to quote is Captain Jack's Dead Man Brew.