Idaho Administrative Code
Title IDAPA 02 - Agriculture, Department of
Rule 02.06.01 - RULES GOVERNING THE PRODUCTION AND DISTRIBUTION OF SEED
Subchapter A - PURE SEED
Section 02.06.01.150 - NOXIOUS WEEDS

Universal Citation: ID Admin Code 02.06.01.150

Current through September 2, 2024

01. Prohibited Noxious Weed Seeds -- Table 1.

Common Name

Scientific Name

1. Beancaper, Syrian

1. Zygophyllum fabago L.

2. Bindweed, Field

2. Convolvulvus arvensis L.

3. Buffalobur

3. Solanum rostratum Dun.

4. Bursage, Skeleton leaf

4. Ambrosia tomentosa Nutt.

5. Camelthorn

5. Alhagi camelorum Fisch.

6. Carrot, Wild

6. Daucus carota L.

7. Cress, Hoary

7. Cardaria draba (L.) Desv

8. Crupina, Common

8. Crupina vulgaris Cass.

9. Fieldcress, Austrian

9. Rorippa austriaca (Crantz) Bess.

10. Goatgrass

10. Aegilops cylindrica Host

11. Groundcherry, Smooth

11. Physalis subglabrata Mackenz. & Bush

12. Henbane, Black

12. Hyoscyamus niger L.

13. Johnsongrass

13. Sorghum halepense L.

14. Knapweed, Diffuse

14. Centaurea diffusa Lam.

15. Knapweed, Russian

15. Centaurea repens L.

16. Knapweed, Spotted

16. Centaurea maculosa Lam.

17. Lythrum, Purple

17. Lythrum salicaria L.

18. Nightshade, Silverleaf

18. Solanum elaeagnifolium Cav.

19. Pepperweed, Perennial

19. Lepidium latifolium L.

20. Poison-Hemlock

20. Conium maculatum L.

21. Puncturevine

21. Tribulus terrestris L.

22. Quackgrass

22. Elytrigia repens; Agropyron repens (L.) Beauv.

23. Ragwort, Tansy

23. Senecio jacobaea L.

24. Skeletonweed, Rush

24. Chondrilla juncea L.

25. Sowthistle, Perennial

25. Sonchus arvensis L.

26. Spurge, Leafy

26. Euphorbia esula L.

27. St. Johnswort, Common

27. Hypericum perforatum L.

28. Starthistle, Yellow

28. Centaurea solstitialis L.

29. Swainsonpea

29. Sphaerophys salsula (Pall.) DC; Swainsona salsula (Pallas) Taubert

30. Thistle, Canada

30. Cirsium arvense (L.) Scop.

31. Thistle, Musk

31. Carduus nutans L.

32. Thistle, Scotch

32. Onopordum acanthium L.

33. Toadflax, Dalmatian

33. Linaria genistifolia spp. dalmatica (L.) Maire & Petitmengin

34. Toadflax, Yellow

34. Linaria vulgaris Mill.

35. Woad, Dyers

35. Isatis tinctoria L.

02. Restricted Noxious Weed Seeds -- Table 2.

Common Name

Scientific Name

1. Dodder

1. Cuscuta spp.

2. Halogeton

2. Halogeton glomeratus (Stephen ex Bieb.) C.A. Mey

3. Lettuce, Blue

3. Lactuca pulchella (Pursch) DC.

4. Oats, Wild

4. Avena fatua L.

5. Plantain, Buckhorn

5. Plantago lanceolata L.

6. Ragweed, Western and Perennial

6. Ambrosia psilostachya DC., (T. & G.) Farw.

7. Rye, Medusahead

7. Taeniatherum caput-medusae (L.) Nevski; Elymus caput-medusae (L.)

8. Sumpweed, Poverty

8. Iva axillaris Pursh

03. Restricted Noxious Weed Tolerances.

a. Seven (7) seeds in fifty (50) grams of Agrotis species, Poa species, Rhodes grass, Bermudagrass, timothy, celery, and other agricultural or vegetable seeds of similar size and weight, within this group.

b. Seven (7) seeds in each fifty (50) grams of Dallisgrass, ryegrass, fescue species, foxtail millets, alfalfa, red clover, sweetclover, lespedeza, bromegrass, Brassica species, carrot, onion, and other agricultural or vegetable seeds of similar size and weight or mixtures within this group, or mixtures of this group with those in group A.

c. Seven (7) seeds in fifty (50) grams of alsike clover, white clover, and other agricultural or vegetable seeds of similar size and weight or mixtures within this group, with those in group A or group B.

d. Eight (8) seeds in one hundred fifty (150) grams of Proso millet, Sudangrass, and seeds of similar size and weight, or mixtures of seed within this group.

e. Forty-five (45) seeds in each pound for all wheatgrass species.

f. Four (4) seeds in each five hundred (500) grams of wheat, oats, rye, barley, buckwheat, sorghums, vetches, field peas, and other seeds of a size and weight similar to or greater than those within this group, or any mixtures within this group.

g. Containing more than one percent (1%) by weight of weed seeds including restricted noxious weed seeds referred to in Section 22-414(18)(b), Idaho Code, provided, that three percent (3%) of cheat, chess, or downy brome will be allowed in grass seed in which these weeds are found.

Effective March 15, 2022

Disclaimer: These regulations may not be the most recent version. Idaho may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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