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4.5.202    CATEGORY 1

(1) Category 1 noxious weeds are weeds that are currently established and generally widespread in many counties of the state. Management criteria includes awareness and education, containment and suppression of existing infestations and prevention, of new infestations. These weeds are capable of rapid spread and render land unfit or greatly limit beneficial uses.

(2) The following are designated as category 1 noxious weeds:

(a) Canada thistle (Cirsium arvense);

(b) Field bindweed (Convolvulus arvensis);

(c) Whitetop or Hoary cress (Cardaria draba);

(d) Leafy spurge (Euphorbia esula);

(e) Russian knapweed (Centaurea repens);

(f) Spotted knapweed (Centaurea stobe L. spp. micranthos = Centaurea maculosa);

(g) Diffuse knapweed (Centaurea diffusa);

(h) Dalmation toadflax (Linaria dalmatica);

(i) St. Johnswort (Hypericum perforatum);

(j) Sulfur (erect) cinquefoil (Potentilla recta);

(k) Common tansy (Tanacetum vulgare);

(l) Ox-eye daisy (Chrysanthemum leucanthemum L.);

(m) Houndstongue (Cynoglossum officinale L.);

(n) Yellow toadflax (Linaria vulgaris); and

(o) Hoary alyssum (Berteroa incana L.).

History: 7-22-2101, MCA; IMP, 7-22-2101, 80-7-802, MCA; NEW, 1986 MAR p. 337, Eff. 3/14/86; AMD, 1991 MAR p. 511, Eff. 4/26/91; AMD, 1994 MAR p. 563, Eff. 3/18/94; AMD, 2000 MAR p. 451, Eff. 2/11/00; AMD, 2003 MAR p. 1272, Eff. 6/27/03; AMD, 2008 MAR p. 563, Eff. 3/28/08.

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