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Noxious Weeds

IL Noxious Weeds List

  • Marijuana (cannabis sativa L.)
  • Giant Ragweed (Ambrosia trifida L.) – Noxious within the corporate limits of cities, villages, and incorporated towns
  • Common Ragweed (Ambrosia atremisiifolic L.) – Noxious within the corporate limits of cities, villages, and incorporated towns
  • Canada Thistle (cirsium arvense)
  • Perennial Sow Thistle (sonchus arvensis)
  • Musk Thistle (carduus nutans)
  • Perennial members of the sorghum genus including Johnson-grass (sorghum halepense), sorghum almun, and other Johnson-grass x sorghum crosses with rhizomes
  • Kudzu (pueraria labata)
Weed Commissioner Department Pages

Contact Weed Commissioner

Chris Howell, Weed Commissioner

100 S. Main St., Waterloo, IL 62298
Tel: 618-939-8681 ext. 297 or ext. 212, Fax: 618-939-4191, highway@monroecountyil.gov
Monday – Friday 8:00 a.m. – 4:30 p.m.