Is cluster fly spray poisonous

[Henny101]

New to chickens (we’ve only had them a week). We are getting the perimeter of our house and out buildings sprayed for cluster flies this week. Does anyone know from experience if the spray is poisonous to chickens? I would hate for them to get into it and be sick/die. They free range during the day. Hoping I don’t have to lock them up for too long. I will of course be asking the technician when they come.

 

[Ridgerunner]

I will of course be asking the technician when they come.

To me this is the right person to ask. When we get sprayed for termites or other pests the technician should know how long to wait and such. Usually for dogs they say just a couple of hours to make sure it its dry, but that is probably a different chemical and chickens are not dogs.