Boy, that EDU paper was poorly researched. More like someone's homework for an evening typing it up to post on the website.
I'm in need of an organic solution that is for cool grasses in Northern Illinois, that is also chicken friendly. Customer has six chickens, and substantial grub damage from last year. During the project I just completed, while removing sod and regrading the terrain, found a heavy amount of grubs. His property is prime grounds for grub infestations being low ground in the neighborhood (literally, everyone behind him is much higher ground levels - creates quite the lake), along with excellent turf (well, was last spring). Seeking the best viable option.