Don't forget to Mulch!!! A nice thick layer of rough woodchip or brushy material can also stop or least slow them down. Also will reduce your watering needs by about 90% and protect your soil biome. Eventually more mulch can be added to it and will form a fungally dominant soil to help roots plug into an internet of resources. Many styles of gardening, but I hope my comment isn't consider too mulch, or mulch ado about nothing.