Gasoline kills most anything. Pour it on and wait. If you have a lawn around them, you may not want to try it.
Gasoline will not only kill wild onions it will kill any other growth and prevent further crops succeeding. It is also dangerous.
Use onions grass
No they are not.
Eaten long term or in large amounts wild onions (and garlic) can cause anemia in horses.
yes
Cows do eat many wild onions in the summer months. These onions will not hurt cattle. However, other onions may cause stomach problems for cows.
no
They are killing them
NO. They do not require onions but they will eat plants from the allium family including Garlic, chive and wild onion.
You should NOT feed wild animals.
Buffalo, deer, berries, roots,corn, sweetflag, rabbiat, beaver, wild onions & wild grapes.
buck's killing spitz.
its known as "prevention of unnecessary killing of wild animals". kind of obvious if you ask me