May 23, 2012
Jim Heins trains volunteers to help reduce the spread of garlic mustard. The only way to effectively reduce the spread is to go back to the exact spot year after year.
Stories this photo appears in:
Garlic Mustard Challenge
Invasive plant threatens forest understory, bird habitat.
The invasive garlic mustard plant has advanced rapidly into the C&O Canal National Historical Park and endangers the ecology of native plants and animals.
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