I have chickens who free range in my yard. We have been bombarded with mosquitoes and ants. My husband went to Lowe's and all he could find was insecticide ... Well I looked online and it is not recommended by the FDA for grazing livestock. But it was too late. My husband sprayed yesterday after the flock was put up for the night. I let everyone out for about 5 hours. Before I knew what he had sprayed. What should I do??? I put everyone up because I don't want anyone sick from the insecticide in my yard...... What do I do now??? Do I have to leave them in for days, weeks or a month??? Please help.... most of these birds I have hand raised and spent a lot of time and money on all of them.... my youngest were born July 4th and are doing great!!!