Invasive: Garlic Mustard

Garlic Mustard is a plant that was recorded first in the North America in 1868 in New York it has spread and taken over parts of the woods at Johnson School. This plant is an invasive plant and has pushed out the "toothworts" that are the primary food of the native West Virginia white butterfly. We are trying to remove this plant from Johnson School but the seeds can last for 5 years so we would love some help. It can be pulled out by the roots very easily so it is great job for kids. Does anyone have access to some toothwort plants that we can put in the woods to return this plant to its natural environment?