WYOMING WEED & PEST CONTROL ACT DESIGNATED LIST 

 

Designated Noxious Weeds .S. 11-5-102 (a)(xi) and 
Prohibited Noxious Weeds W.S. 11-12-104

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1. Field bindweed  (Convolvulus arvensis L.) 

2. Canada thistle  (Cirsium arvense L.) 

3. Leafy spurge  (Euphorbia esula L.) 

4. Perennial sowthistle  (Sonchus arvensis L.) 

5. Quackgrass  (Agropyron repens (L.) Beauv.) 

6. Hoary cress/Whitetop  (Lepidium draba L. & Lepidium appelianum) 

7. Perennial pepperweed/Giant Whitetop  (Lepidium latifolium L.) 

8. Ox-eye daisy  (Chrysanthemum leucanthemum L.) 

9. Skeletonleaf bursage  (Franseria discolor Nutt.)

10. Russian knapweed  (Centaurea repens L.) 

11. Yellow toadflax  (Linaria vulgaris L.) 

12. Dalmatian toadflax  (Linaria dalmatica (L.) Mill.) 

13. Scotch thistle  (Onopordum acanthium L.) 

14. Musk thistle  (Carduus nutans L.) 

15. Common burdock  (Arctium minus (Hill) Bernh.) 

16. Plumeless thistle  (Carduus acanthoides L.) 

17. Dyers woad  (Isatis tinctoria L.) 

18. Houndstongue  (Cynoglossum officinale L.) 

19. Spotted knapweed  (Centaurea maculosa Lam.)

20. Diffuse knapweed  (Centaurea diffusa Lam.) 

21. Purple loosestrife  (Lythrum salicaria L.) 

22. Saltcedar  (Tamarix spp.) 

23. Common St. Johnswort  (Hypericum perforatum) 

24. Common tansy  (Tanacetum vulgare) 

25. Russian olive  (Elaeagnus angustifolia L.)

26. Black henbane  (Hyoscymus niger)

27. Common mullein  (Verbascum Thapsus L.)

28. Medusahead rye  (Taeniatherum caput-medusae)

29. Ventenata  (Ventenata dubia)

30. Yellow starthistle  (Centaurea solstitialis)

31. Palmer Amaranth (Amaranthus Palmeri)

Designated Pests W.S. 11-5-102 (a)(xii)

1. Grasshoppers 

2. Mormon Crickets 

3. Prairie Dogs 

4. Ground Squirrels

5. Mountain Pine Beetle 

6. Beet Leafhopper