So I finally broke down and built a halfway decent coop for the flock. All the bells and whistles are there, plenty of space, plenty of food / H2O, etc... Their old coop was one of my ghetto creations made from old shipping pallets and tin roofing. They basically moved from a shack into a nice...
See if you can obtain the MSDS sheets from the city/town that correspond with the pesticide. Those should give a good description of the hazards of the chemicals. They shouldn't have a problem providing you that information- they're intentionally releasing the pesticide into your environment so...
I wouldn't do that- You'll just give local predators a target to go for even after you deem it safe and fill it with chickens. Don't make yourself a target.