sorry, but it didn't when I tried it, and several other people have also said creocote doesn't kill the mites.
Also it is a creosote substitute, not a newly badged version.
Forgive me, I should have qualified my answer.
Two years ago or so when I had a red mite infestation, I tried everything the vet suggested, and everything else I could as well. The infestation is a serious business and can lead to loss of birds. The old fella running the local farm shop told me to spray creosote into every nook and cranny and I did. I kept the birds out until it was all dry, (about 24 hours), and during that time literally thousands of mites crawled out of the woodwork and died on the wood. It was as if someone had spilled a bag of flor in there. We have been clear since, but in the last six weeks, two birds have a different version, scaley leg mite, which we have treated with Frontline. In the meantime however, I went back to the old guy in his store, and bought Creocote, which he assured me was thesame product. With some apprehension, I bought it, but before using I rang the customer helpline to checkit was safe and appropriate.
I was put through to the appropriate boffin, who was anxious to stress DO NOT USE THIS FOR CHICKENS because it was as he put it, a "nasty product." They have rebadged it as a TIMBER TREATMENT only, as it is good at killing things. The formula has not been changed, but the labels reflect thenew name, with no claims made on insect effectiveness, but now only as a timber treatment as that is what the clinical trials have proved. No more, no less.
He urged me to wear full ppe, and not admit the birds back for centuries. I explained that I have used it before for this purpose and he calmed down a bit, finally agreeing that it will kill every living thng nearby, butwhen its dry it will be safe again. That done, I locked the birds out and sprayed into every corner.
Hope this is helpful, GA.