Hi, My mother had a lawn company come out and spray the lawn for weeds, grubs, etc this morning. The company says they use "all natural" chemicals and that kids and pets can go back on the lawn 1-2hrs after spraying. My concern is that the chickens eat the grass and I don't want anything getting into the eggs. I also worry about them getting sick. Most pets don't eat grass (or produce something we eat). I was furious when she let the girls out of their run to roam this afternoon. I came home from work and she told me they had been out for 10-15min. How long should I leave them in their pen? Should I destroy all the eggs we get for the next couple of days? Thanks!