Idaho Admin. Code r. 02.06.01.150

Current through September 2, 2024

Section 02.06.01.150 - NOXIOUS WEEDS

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.

Idaho Admin. Code r. 02.06.01.150

Effective March 15, 2022