Invasive species have a negative effect on our natural areas and threaten the health of commercial, agricultural and recreational activities dependent on healthy ecosystems. Each winter, we selectively remove invasive woody species from forest preserves throughout the county. Learn more »
Cuba Marsh | Deer Park
Removal of invasive woody species, primarily buckthorn and non-native crabapple, on a large, 90-acre tract of oak woodlands and adjacent prairie will begin in January 2015. The project area is west of the CN railroad tracks and east of Lake Zurich Road on the western edge of the preserve. A wide diversity of plants and animal are found at this site, including several that are listed by the Illinois Department of Natural Resources as Species in Greatest Need of Conservation.
Lakewood | Wauconda
A contractor will be selectively removing invasive woody species from a 38-acre section in the southeast portion of the preserve. One unit within this section is south of Route 176 near the Lakewood Winter Sports Area parking lot. The second unit is north of Schreiber Lake. Both units in this section include rolling topography and areas comprised mainly of black, red and white oaks, as well as shagbark and bitternut hickories. Portions of the woods near Schreiber Lake are of moderately high quality with a diversity of native plants, including Pennsylvania sedge, nodding wild onion and elm-leaved goldenrod.
Wadsworth Savanna | Wadsworth
A contractor will be selectively removing invasive woody species in a 40-acre section of historic oak savanna. Understory trees will also be thinned within 26 gaps, allowing more sunlight to reach the ground. Higher light levels will encourage the reestablishment of native sedges, grasses, forbs and shrubs, while creating conditions that allow for regeneration of various oak species, including white, Hill’s, black and bur oaks.