CAA: Non-native thistle control in Northwest Colorado

CAA: Non-native thistle control in Northwest Colorado

Non-native, invasive thistles are rapidly expanding across Routt County and Northwest Colorado. These aggressive plants outcompete native vegetation, including native thistles, disrupting ecosystems and crowding out species vital to pollinators, wildlife, and livestock. Fortunately, fall offers a prime opportunity to control their spread before winter sets in. • Biennial thistles complete their life cycle over two years. In the first year, they …