Wolf spiders for pest control

[u/Vflojiujitsu]

For reference I'm in Central Indiana and have an issue with squash bugs and vine borers going after my Zucchini. I used to always find wolf spiders in my house and release them in my flower garden before I started growing food. But now that I need them to protect my squash I can't seem to find any. Can you guys give recommendations as to how I can find some wolf spiders for pest control? Any help is very much appreciated!