Illinois Historic Preservation Agency

11/09/2026 | Press release | Distributed by Public on 11/10/2026 16:13

Portions of Illini State Park scheduled to close Nov. 16-20 for aerial herbicide application

SPRINGFIELD - Portions of Illini State Park in LaSalle County will be closed to the public Nov. 16-20, weather permitting, as crews conduct an aerial herbicide application to control invasive bush honeysuckle in the park's woodlands.

The treatment is intended to reduce invasive bush honeysuckle and improve woodland habitat for native plants and wildlife. Public access to affected areas of the park will be restricted during the treatment. For more information, contact the site office at 815-795-2448.

Illini State Park near Marseilles attracts more than 600,000 visitors annually. Popular recreational activities include hiking, camping, fishing, boating and picnicking.

About IDNR


The Illinois Department of Natural Resources was established in 1925 as the Illinois Department of Conservation, bringing under one umbrella oversight of fish and game, forestry, public works, and lakes. Today, IDNR's work encompasses management of about 400 sites across Illinois, including state parks and historic sites; wildlife, fisheries, forestry, and natural heritage; Lake Michigan water allocation and coastal management; conservation police; mines and minerals; oil and gas; issuance of licenses, permits, and numerous grants; the World Shooting and Recreational Complex in Sparta; and the Illinois State Museum. Visit https://dnr.illinois.gov and follow us on Facebook , YouTube and LinkedIn .
Illinois Historic Preservation Agency published this content on November 09, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on November 10, 2026 at 22:13 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]