Vine weevils

I gave up growing strawberries in containers because of vine weevils. You could elevate the planter somehow to stop them climbing up since they can't fly. Nematodes will work but in my view they're too expensive to use multiple times a year. Apparently a layer of gravel around the plants can stop them getting to the soil to lay their eggs. I catch adult weevils sometimes when I'm out at night hunting slugs.