fleas in coop????? What do I do???

[Country Living Farm]

My yard was just invaded by fleas!!! Had it sprayed but not the coop thinking the chickens would eat them. Well they are not.. What should I put in the coop to kill them??? I have some stuff called Demon but I think it would hurt the chickens? I do not have somewhere to put them to I have to use something that will kill the fleas but not the chickens. Any ideas?

 

[okieroy]

DMEarth works really well. I even use it on my dogs to control fleas. Shoot, you can even eat the stuff if you so desire.

 

[HBWang]

I googled DMEarth and got nothing. What is it and where should I find it, please?

 

[klmclain1]

diotomaceous Earth - food grade