Early Detection and Rapid Response (EDRR) is a concept to identify potentially invasive species prior to or just as the establishment of the invasive is taking place. An Integrated Pest Management plan (IPM) can be developed to manage, contain and eradicate the invasive species before it can spread further. This will avoid costly, long-term control efforts.
Scotch thistle (also known as Cotton thistle, Heraldic thistle, Scotch cotton thistle (Onopordum acanthium L.), introduced into the United States from Eurasia as an ornamental plant in the 1800s, is a non-native biennial forb from the sunflower family, but it can behave as an annual or short-lived perennial.
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