The problem is that the seeds of weeds are not broken down as they pass through some animal’s digestive tract. The government is worried about some agressive weed seeds being transported into areas that are free of that certain weed.
The same rules apply to outfitter horses used for transport during hunting season.
I got some manure from a local dairy several years ago and spread it on my garden. I never had a crop of wild amarath (pigweed) come up and am still fighting it today.
My neighbor raised soybeans for years. Then he decided to let grass grow for hay. He got manure to spread on his fields, now those fields are covered with millions of wild onions, which he never had in the past.
My neighbor raised soybeans for years. Then he decided to let grass grow for hay. He got manure to spread on his fields, now those fields are covered with millions of wild onions, which he never had in the past.””
I have had horses for over 26 years.
I have lived rural since 1993 & have had my horses on my own property & not in a boarded situation.
I did not have to pick up any manure in either of the 2 locations I have lived in since 1993. It was left to fertilize the pastures, etc.
I have NEVER seen wild onions on any of my pastures & I have NEVER heard any neighbor had such a problem, either.
I wonder—— what animal provided the manure this person used which had WILD ONIONS within it??????
With a farm background, I don’t know any animal which is fed wild onion as part of their diet.