I let my chickens out periodically to forage on my acre lot. The lawn area right around the house badly needs a weed & fertilizer treatment (the chickens eat all my flowers but not enough of the weeds ) I'd probably use Scotts granulated products for the weeds, and then (at a later date) Miracle-Gro lawn food that gets sprayed on with a hose attachment. I was wondering how long I should keep the chickens off the lawn after treatment? I'm especially concerned about the weed-killer granules and how long it takes them to completely absorb into the ground. Anybody else treated their lawn?