[MaxiB]

I found a tick on one of my hens (Bantam) which disappeared before I could get it off…presumably one of the other hens nabbed it…. There will be more adults and nymphs I’m sure so what can I treat the house and hens with to get rid of them? 

[Richmond]

Ticks don't generally cause a problem to poultry as they are slow moving enough for the hens to pick them off. But if you want to use a deterrent then dusting the hens with diatomaceous earth (Diatom) will suffice, and it will help keep lice (more of an issue in some hens) under control.

[doganjo]

Ticks don't generally cause a problem to poultry as they are slow moving enough for the hens to pick them off. But if you want to use a deterrent then dusting the hens with diatomaceous earth (Diatom) will suffice, and it will help keep lice (more of an issue in some hens) under control.

Just what I'd have said