I had an infestation and Dusted the girls with DE but the Lice are still here, Plus it is hard to dust the rooster I figured if I spray him and the coop and Dust the girls that would work what do you think " lightchick"
I have used on 3 different occasions and always went back to DE and fogging the coop with my tri jet fogger and pure cedar oil from cedercide.com.
Cedar oil kills on contact even eggs.
By the 3rd day all of the mites are gone. In case you just want to buy the cedar oil and use a spray bottle....just as effective.... here is what you do..
Have on hand the cedar oil, remove all girls from the coop, make sure to close the entry into the coop! Remove all the bedding that's in there.....use a shop vacuum if needed and just suck up some DE after vacuuming to kill the buggers in the vac.
Using the spray bottle or fogger spray or fog the entire coop make sure to get into the nook and crannies, with the spray bottle set it on stream for hard to get areas. Make sure to saturate the egg box area real well. Close up the coop for 2 hours. Close it up tight!
If you have the ability to remove the nest boxes out of the coop then do so and as you remove them spray them all over with the spray, all the sides and set them away in the sun to dry. After 2 hours open the coop up to ventilate ....keep the entry door either closed till vented or place a piece of screen/ wire to allow air flow. After 2 hours re assemble the coop and let the girls in. Note if it still has a smell just leave everything open till it dissipates. Make sure to dust everyone with DE, even their dusting holes!
Now if by chance your nest boxes are removable... when you place them back in put just enough bedding to make them comfortable because the next morning remove each nest box - if removeable- and dump the bedding in the trash and re spray the nest box, let sit 5 minutes and put back into the coop with new bedding and repeat for the total of 3 days. .You do this because I have found that with removable nest boxes the majority of mites left in the morning are coming off your girls and will migrate to the underside of the nest box where they will be easy to spray . You can spray the dusting areas with the cedar oil but after 5 minutes go ahead and shovel turn the dirt.
I have forgone my regular nest boxes and went to my local Lowes Hardware store and bought their large stackable bins in the housewares dept and placed them inside the nest boxes with a little bedding. I usually get mites 2-3 times a year since we have a lot of wild birds coming thru and by placing the bedding only in these nest boxes it makes de mite-ing a breeze.
Yes the cedar oil and the trijet fogger are expensive but I saved up the $ and gave myself the best Christmas present ever!
I bite the bullet every 2 years and buy the cedar oil in multiples of 4. I only buy my oil from them for I got oil mixed with water from other sites.