How can I keep my beans and...

If you have hot, dry weather, these guys are going to bug you, that’s for sure. Spider mites don’t take well to high humidity and moist soil, so one strategy is to keep your plants well mulched and mist them regularly, especially if the weather has been dry. If you see the tiny spider webs forming, squirt them with a hose to break them apart. If you have to resort to insecticidal spray, keep it up for at least three weeks so that you also get rid of the maturing mites as they hatch from their eggs.