Indian Cave State Park in southeast Nebraska is inviting volunteers to stop an invasion in the oak woodlands.
The park has scheduled a work day from 10 a.m. to 3 p.m. on April 30 to hand pull garlic mustard, an invasive, non-native herb that can grow in sun or shade and out-competes native plants.
Krista Lang, land conservation technician at the park, said the plant also protects its territory by secreting chmicals into the soil that prevent other plants from
growing and changes the soil by killing soil microbes important to the function of oak woodlands.
The plant was identified at the 3,339-acre park in 2007. In 2011 and 2012, efforts began to control it.