I went on holiday for a couple of weeks to come back and find one of my chicken houses was full of red mite! Not just on the ends of the perches but in every crack and crevice and in every corner. Red Mite are notoriously difficult to remove once they get a grip on a chicken house. When the weather is warm, red mite multiply very quickly and before you know it, you’ve got a serious infestation to deal with.
Dealing with a serious Red Mite outbreak.
So how do you deal with such a serious red mite infestation? Normally, for small numbers I would wash the house down with poultry shield and use a number of other red mite products here and there to kill off these unwanted visitors but with so many mites in the chicken house, more serious action was required. Here’s what to do:
Allow yourself a good couple of hours…
- Clean out the house, remove all loose bedding material. Strip the house down as much as you can. Remove as many parts as possible including pop holes, automatic pop hole openers and anything else that will unscrew easily.

Cleaning the chicken house to remove red mites
- If you have a felt roof, remove this – yes, unfortunately you will need to re-felt the roof. If you don’t you will find millions of red mites will still live happily under the felt.
- Using a high pressure hose / pressure washer, wash the house and parts down. Get the spray in every crack and crevice. This will take about 45 minutes if done properly. If you miss a crack, hundreds of mites could be hiding in there so it’s really important to ensure you get into everywhere possible. The spray will bounce back and soak you at times so wear old clothes and be prepared to get wet.
- Wait for the house to dry 10 to 15 minutes. Now look at it carefully – you should see red mites crawling around. These are the guys you missed that are coming out because they have been disturbed and are wet.

Spread generous amounts of Diatom on the bedding material.
- Go over the house again from top to bottom, again concentrating on the cracks.
- Repeat the above process as many times as necessary until there are very few mites coming out. The more you remove, the better. Even small populations can multiply quickly.
- Put your house back together. If you had a felt roof, leave re-felting until you are mite free for a couple of weeks. A temporary waterproof material should be used – plastic is ideal.
- Add fresh bedding material as you would after cleaning normal.
- Sprinkle a generous amount of diatom onto the bedding. The manufacturers recommend 500g per M2 which is quite a lot.
- Put a handful of diatom into your hand and rub it

Diatom should be rubbed into perches
into each perch, taking particular care around the ends and the underside. Whenyou have finished it should be white and smooth, like a gymnasts bar. Red mites have to crawl over this to get to the chickens at night.
Monitor the house for a few days, particularly on perch ends and re-apply diatom to the perches every couple of days or as soon as it starts to wear off.
If you have got into all of the cracks successfully, you should notice a drastic reduction in the number of red mite in the house – if you still find reasonable numbers, make up a spray mixture of poultry shield and spray onto these areas using a hand held plant mister.
Continue using diatom for a few weeks until there are no more signs of red mite.
You will find an article on Red Mite with lots more information on the main poultrykeeper site, there are also other posts about Red Mite in my blog – (select ‘Red Mite’ in the Tag cloud to see them) including My Top 4 Red Mite Products
If you have any other tips on controlling red mite or would like to leave a comment then please feel free to do so below.
You can buy Diatomaceous Earth from specailist poultry product suppliers – for example Wells Poultry.
I usually buy a large tub around 2KG as shown to the right but I also bought a small puffer bottle / shaker that is useful because you can refil it from the big tub making it easier to apply and less wasteful.




#1 by val kingston-lee on August 28, 2011 - 8:55 pm
After reading all of this and trying all the treatments – I’m itching all over and will order a plastic hen house!
#2 by H Jones on August 31, 2011 - 7:48 am
Thanks for all the help..
I gave up in the end, burnt the coop and re-homed chickens to a free range local farm. The farm know they had mite but have creosolted their coops and have more expert knowledge and space than me to keep on top of them if they do take a few with them.
I just couldn’t cope with them and they were too close to my back door for comfort.
Godd luck everyone!
#3 by Karen on September 3, 2011 - 12:12 am
Hi
We have or hopefully had an infestation of red mite. It was so bad and the coop was very old and hotch potched together so was due for renewal.. So we had us a bonfire and bought the girls a new coop. My 3 girls have been diactomed to within an inch of their lives and the new coop is pure white inside lol, so hopefully this will now eradicate the buggers. Thought we did loose one girl to them before we realised how bad they had gotten over the 2 weeks we were on holiday. The coop stands on slabs and they were treated with Diactom too. Apart from keeping a close eye on the girls and the new coop over the next couple weeks any other suggestions ( i have garlic in their water, and diatom in their favourite dusting area) Would a few drop of tee tree oil help if put on the back of their necks?? Should I get poultry shield and spray the new coop anyway? Is there such a thing as over kill with these things?? Oh and I am sick of finding them crawling over me
Sure they have snuck in the house on me.. but if they have they will be dealt with with diactom on the furniture lol..
Thanks to everyone for their help and advice.
Karen
#4 by Tim Daniels on September 5, 2011 - 5:00 pm
I haven’t tried Tea Tree on the chickens themselves – but remember the mites live in the house most of the time so I would think it would be more effective on the ends of perches… Good Luck…
#5 by David on September 13, 2011 - 2:36 pm
Was wondering if a good frost or the well below freezing temps of winter will kill some of the mites?
Of course I understand they will survive under and around the water as it is kept warm to prevent freezing.
Have lost 3 hens to the mites even though have used tons of diatom and thoroughly cleaned the coupe and used a torch all over inside and out, and put garlic in their water, even dusted all with the diatom.
Some reduction in the mites has been noticed, but still have a problem, do not want to use chemicals.
Any other suggestions?
#6 by ErlindaDolphin on November 11, 2011 - 7:23 am
This is a good site. Thank you for sharing your good information.
#7 by Zoe on November 14, 2011 - 9:44 am
Hi, I have the same problem with Jones…I sprayed my dog’s house but nothing changed also..
#8 by Steven Hodge on November 21, 2011 - 10:47 am
I have also a problem about this Red Mite Infestation, and I think the information and guide that I have read in this post are effective so I will try it at home. Thanks for sharing.
#9 by Eric Harrison on November 21, 2011 - 2:56 pm
Thanks for this article. This is very useful to everybody. Thanks for sharing this to us.