Utah Admin. Code R68-9-3 - Designation and Publication of State Noxious Weeds

(1) The department designates and publishes noxious weeds into five classes.

(2) Noxious and invasive weeds listed in Table 1 are Class 1A: EDRR Watch List. They are declared to be:

(a) not native to Utah;

(b) not known to exist in the state;

(c) a serious threat to the state; and

(d) a very high priority if identified in the state.

TABLE 1 Class 1A (EDRR Watch List)
Weed Name	Binomial Name
Common crupina	Crupina vulgaris
Mediterranean sage	Salvia aethiopis
Plumeless thistle	Carduus acanthoides
Small bugloss	Anchusa arvensis
Spring millet	Milium vernale
Syrian bean caper	Zygophyllum fabago

(3) Noxious and invasive weeds listed in Table 2 are Class 1B: EDRR. They are declared to be:

(a) not native to Utah;

(b) known to exist in the state in very limited populations;

(c) a serious threat to the state; and a very high priority.

TABLE 2 Class 1B (EDRR)
Weed Name	Binomial Name
African mustard	Brassica tournefortii
African rue	Peganum harmala
Blueweed (Vipers bugloss)	Echium vulgare
Camelthorn	Alhagi maurorum
Common St. Johnswort	Hypericum perforatum
Cutleaf vipergrass	Scorzonera laciniata
Elongated mustard	Brassicas elongate
Eurasian watermilfoil	Myriophyllum spicatum L.
Garlic mustard	Alliaria petiolate
Giant reed	Arundo donax
Goat's rue	Galega officinalis
Japanese knotweed	Polygonum cuspidatum
Malta starthistle	Centaurea melitensis
Oxeye daisy	Leucanthemum vulgare
Parrot feather	Myriophyllum aquaticum
Purple starthistle	Centaurea calcitrapa
Ventenata (North African grass)	Ventenata dubia

(4) Noxious and invasive weeds listed in Table 3 are Class 2: Control. They are declared to be:

(a) not native to Utah;

(b) a threat to the state; and

(c) a high priority for control.

(i) Weeds listed in the control list are known to exist in varying populations throughout the state.

(ii) The concentration of these weeds is at a level where control or eradication may be possible.

TABLE 3 Class 2 (Control)
Weed Name	Binomial Name
Black henbane	Hyoscyamus niger
Dalmatian toadflax	Linaria dalmatica
Diffuse knapweed	Centaurea diffusa
Dyer's woad	Isatis tinctoria
Leafy spurge	Euphorbia esula
Medusahead	Taeniatherum caput-medusae
Purple loosestrife	Lythrum salicaria
Rush skeleton weed	Chondrilla juncea
Spotted knapweed	Centaurea stoebe
Squarrose knapweed	Centaurea virgata
Yellow starthistle	Centaurea solstitialis
Yellow toadflax	Linaria vulgaris

(5) Noxious and invasive weeds listed in Table 4 are Class 3: Containment. They are declared to be:

(a) not native to Utah; and

(b) widely spread.

(i) Weeds listed in the containment noxious weeds list are known to exist in various populations throughout the state.

(ii) Weed control efforts may be directed at reducing or eliminating new or expanding weed populations.

(iii) A County Weed Control Board may determine known and established weed populations and manage them according to any approved weed control methodology.

(iv) Class 3 weeds threaten the agricultural industry and agricultural products.

(v) The department does not consider Bermudagrass as a noxious and invasive weed in Washington County and it is not subject to Title 4, Chapter 17 Utah Noxious Weed Act within Washington County.

(vi) Triploid hybrid Bermudagrass purchased from a producer certified with the Utah Crop Improvement Association and the Nursery Inspection program is allowed for commercial and private uses throughout Utah.

TABLE 4 Class 3 (Containment)
Weed Name	Binomial Name
Bermudagrass*	Cynodon dactylon
Canada thistle	Cirsium arvense
Field bindweed (Wild Morning-glory)	Convolvulus spp.
Hoary cress (globe-podded)	Lepidium draba (Cardaria draba)
Hoary cress (heart-podded)	Lepidium chalepense (Cardaria chalepensis)
Hoary cress (lens-podded)	Lepidium appelianum (Cardaria pubescens)
Houndstongue	Cynoglossum officianale
Jointed goatgrass	Aegilops cylindrica
Musk thistle	Carduus nutans
Perennial pepperweed (Tall whitetop)	Lepidium latifolium
Perennial Sorghum spp. Including: Johnson grass Columbus grass	Sorghum halepense Sorghum almum
Phragmites (Common reed)	Phragmites australis ssp.
Poison hemlock	Conium maculatum
Puncturevine (Goathead)	Tribulus terrestris
Quackgrass	Elymus repens
Russian knapweed	Acroptilon repens
Scotch thistle (Cotton thistle)	Onopordum acanthium
Tamarisk (Saltcedar)	Tamarix ramosissima
* Bermudagrass (Cynodon dactylon) may not be considered a noxious weed in Washington County. Triploid Hybrid Bermudagrass is not considered a noxious weed in Utah.

(6) Noxious and invasive weeds listed in Table 5 are Class 4: Prohibited for sale or propagation. They are declared to be:

(a) not native to Utah; and

(b) a threat to the state through retail sales or propagation in the nursery and greenhouse industry.

(i) The department designates annual, biennial, or perennial plants that have the potential or are known to be detrimental to human or animal health, the environment, public roads, crops, or other property as prohibited noxious weeds.

(ii) Section R68-8-2 Prohibited Noxious Weed Seeds and Restricted Weed Seeds are listed.

TABLE 5 Class 4 (Prohibited)
Weed Name	Binomial Name
Cogongrass (Japanese blood grass)	Imperata cylindrica
Dames Rocket	Hesperis matronalis
Myrtle spurge	Euphorbia myrsinites
Russian olive	Elaeagnus angustifolia
Scotch broom	Cytisus scoparius

(7) Tables 1, 2, 3, 4, and 5 list the weeds officially designated and published as noxious weeds for Utah. Each county may have different priorities regarding specific state designated noxious weeds and may reprioritize these weeds for the county weed list.

Notes

Utah Admin. Code R68-9-3

Amended by Utah State Bulletin Number 2016-5, effective 2/2/2016 Amended by Utah State Bulletin Number 2022-13, effective 6/21/2022 Amended by Utah State Bulletin Number 2023-22, effective 10/30/2023 Amended by Utah State Bulletin Number 2024-14, effective 6/28/2024