At the beginning of the year, we had to burn the chickens house due to mite infestation. We have been dusting them with diatom weekly for 2/3months, and today I notice clumps of red mites in the bloody house. I've cleaned it all out put diatom everywhere, and on the birds, and sudacream (no Vaseline!) around the ends of the perches. I have read all the mite forums on here, anyone got any special tricks?? I'm so fed up of them.