[GeorgieB82]

Does anyone else find that Docks thrive in their chicken runs? Mine looks like a Dock forest!

Does anyone have any cure for them except Roundup'ing the whole area?

[Mammyshaz]

I dig them out as they are poisonous to chickens. Probably why they haven't eaten them 

[lord flynn]

erm, mine eat them-they all seem fine? they love the young ones.

[GeorgieB82]

My chickens peck them as well, I bet they are spreading the seeds in their poo!

[Backinwellies]

Docks love very high fertile areas .... dairy cow fields are always full of them.  They are tap rooted so its not really the seeds you need to worry about.  Glyphosate spotted on individual plants is probably your best bet.

Didn't know they were poisonous the chickens.