I have a few things to add based on what I learned this summer during a horrible and sudden experience with mite infestation.
FIRST: THEY DO BITE HUMANS...
I had sod delivered from Northern California and a few days later I started getting really itchy red bumps...At first I thought it was fleas. I went to the Dermatologist and asked her if it could be chicken mites and she said "No, they don't cross species and won't normally bite humans." Well she was wrong! It progressed to 50 bites or more, and I still couldn't figure it out until I took one of my broodies out of her nest and literally hundreds of tiny specks were crawling all over me and biting me!!! Every morning I would wake up with 8 - 10 more really itchy bites! SO CREEPY!!!
I examined them under my loop and they were definitely fowl mites, probably transferred with the new sod that had been delivered (never have had a problem before!) They had gotten into my house on my feet and legs after going into the coop or handling the chickens, and they definitely lingered in the house long enough to eat me alive!!!
SECOND: HERE'S HOW I QUICKLY ERADICATED THEM WITHOUT BAD CHEMICALS:
1. I cleaned out all of the bedding in the coop and sprayed the entire coop with TRIAZIDE ( a synthetic pyrethrin by Spectracide that is approved for same day use on harvest of fruits and vegetables). I also sprayed the sod, and planted areas that they free-range. (Don't expose the chickens to it until it dries!)
2. I dusted the entire coop, beds, etc., with FOOD-GRADE DIATOMACEOUS EARTH. Then I added fresh bedding. I also dusted all of my chickens, paying special attention to areas like under the wings where the mites like to hide. I added some to the areas that they like to dig and dust-bathe too. NOTE: It is IMPORTANT to use only FOOD-GRADE DE!!!
PROBLEM SOLVED! The mites were gone immediately and never came back!
So based on my experience, you should buy a big bag of the food grade DE as a preventative BEFORE you have any problems, and you will never have mites, lice, or other creepy crawlers!
P.S. Don't inhale the dust as it can be irrritating to lungs. The DE is also good to add to the food as a preventative for worms...I have had 3 fecal tests from the vet on my chickens and NEVER had any worms! But again FOOD-GRADE ONLY!
Good luck!

FIRST: THEY DO BITE HUMANS...
I had sod delivered from Northern California and a few days later I started getting really itchy red bumps...At first I thought it was fleas. I went to the Dermatologist and asked her if it could be chicken mites and she said "No, they don't cross species and won't normally bite humans." Well she was wrong! It progressed to 50 bites or more, and I still couldn't figure it out until I took one of my broodies out of her nest and literally hundreds of tiny specks were crawling all over me and biting me!!! Every morning I would wake up with 8 - 10 more really itchy bites! SO CREEPY!!!
I examined them under my loop and they were definitely fowl mites, probably transferred with the new sod that had been delivered (never have had a problem before!) They had gotten into my house on my feet and legs after going into the coop or handling the chickens, and they definitely lingered in the house long enough to eat me alive!!!
SECOND: HERE'S HOW I QUICKLY ERADICATED THEM WITHOUT BAD CHEMICALS:
1. I cleaned out all of the bedding in the coop and sprayed the entire coop with TRIAZIDE ( a synthetic pyrethrin by Spectracide that is approved for same day use on harvest of fruits and vegetables). I also sprayed the sod, and planted areas that they free-range. (Don't expose the chickens to it until it dries!)
2. I dusted the entire coop, beds, etc., with FOOD-GRADE DIATOMACEOUS EARTH. Then I added fresh bedding. I also dusted all of my chickens, paying special attention to areas like under the wings where the mites like to hide. I added some to the areas that they like to dig and dust-bathe too. NOTE: It is IMPORTANT to use only FOOD-GRADE DE!!!
PROBLEM SOLVED! The mites were gone immediately and never came back!
So based on my experience, you should buy a big bag of the food grade DE as a preventative BEFORE you have any problems, and you will never have mites, lice, or other creepy crawlers!
P.S. Don't inhale the dust as it can be irrritating to lungs. The DE is also good to add to the food as a preventative for worms...I have had 3 fecal tests from the vet on my chickens and NEVER had any worms! But again FOOD-GRADE ONLY!
Good luck!