Maybe you have just been lucky at keeping the bugs away. I just don't want you to waste money on something that won't rid them should you run into them. It is also bad for the chickens to breath DE in.Ok I will get this product as well.
Just to be clear. I have applied this in the coop and nesting boxes from day 1.
Periodically through the run ( after dries up from rain) for clean dusting.
I feel to be meticulous about the coop. I clean it weekly with new shavings and new dusting for parasites.
With this said, I will still try the other product. Anything for happy healthy girls