Pond Boss Forums GENERAL QUESTIONS Pond Boss poison ivy

Cattle will eat it too, to varying amounts. I've had some that mostly ignore it and others that will break down fence to get to it.

A "Rural Myth" that I can neither confirm nor deny states that drinking milk from cows that eat poison ivy helps convey an immunity to it. I would completely dismiss this, were it not for the "Poision Ivy Extract" pills my late FIL used to take daily to prevent serious PI-outbreaks. That would seem to indicate a possible method for the milk immunity myth to work.