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Terry Turner

Weed/ Mosquito District Supervisor

Ph: 406.265.4453

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Weed & Mosquito District

Terry Turner, Coordinator
Dan McIntosh, Chairman
Arleen Rice, Vice-Chair
Mark Peterson, Ex Aficio
Jim Branden, Member
Bob Vosen, Member
Pete Kuhr, Member

What is a noxious weed or weeds?

Any exotic plant species established or that may be introduced in the state which may render land unfit for agriculture, forestry, livestock, wildlife, or any other beneficial uses or that may harm native plant communities. Noxious weeds are designated by rule of the Department of Agriculture or by the County Weed Board. For more information on weed laws see the “County Noxious Weed Control Act” title 7, chapter 22 Sections MCA 1999 and Administrative rules ARM 4.5.201 through ARM 4.5.203.

Management of noxious weeds for Hill County

Priority 1A Noxious Weeds

These weeds are not present or have a very limited presence in Montana. Management criteria will require eradication if detected, education, and prevention:

  1. Yellow starthistle (Centaurea solstitialis)
  2. Dyer’s woad (Isatis tinctoria)
  3. Common reed (Phragmites australis ssp. australis)
  4. Medusahead (Taeniatherum caput-medusae)
Priority 1B Noxious Weeds

These weeds have limited presence in Montana. Management criteria will require eradication or containment and education:

  1. Knotweed complex (Polygonum cuspidatum, P. sachalinense, P. × bohemicum, Fallopia japonica, F. sachalinensis, F. × bohemica, Reynoutria japonica, R. sachalinensis, and R.× bohemica)
  2. Purple loosestrife (Lythrum salicaria)
  3. Rush skeletonweed (Chondrilla juncea)
  4. Scotch broom (Cytisus scoparius)
  5. Blueweed (Echium vulgare)
Priority 2A Noxious Weeds

These weeds are common in isolated areas of Montana. Management criteria will require eradication or containment where less abundant. Management shall be prioritized by local weed districts:

  1. Tansy ragwort (Senecio jacobaea, Jacobaea vulgaris)
  2. Meadow hawkweed complex (Hieracium caespitosum, H. praealturm, H. floridundum, and Pilosella caespitosa)
  3. Orange hawkweed (Hieracium aurantiacum, Pilosella aurantiaca)
  4. Tall buttercup (Ranunculus acris)
  5. Perennial pepperweed (Lepidium latifolium)
  6. Yellowflag iris (Iris pseudacorus)
  7. Eurasian watermilfoil (Myriophyllum spicatum, Myriophyllum spicatum x Myriophyllum sibiricum)
  8. Flowering rush (Butomus umbellatus)
  9. Common buckthorn (Rhamnus cathartica L.)
  10. Ventenata (Ventenata dubia)
Priority 2B Noxious Weeds

These weeds are abundant in Montana and widespread in many counties. Management criteria will require eradication or containment where less abundant. Management shall be prioritized by local weed districts:

  1. Canada thistle (Cirsium arvense)
  2. Field bindweed (Convolvulus arvensis)
  3. Leafy spurge (Euphorbia esula)
  4. Whitetop (Cardaria draba, Lepidium draba)
  5. Russian knapweed (Acroptilon repens, Rhaponticum repens)
  6. Spotted knapweed (Centaurea stoebe, C.maculosa)
  7. Diffuse knapweed (Centaurea diffusa)
  8. Dalmatian toadflax (Linaria dalmatica)
  9. St. Johnswort (Hypericum perforatum)
  10. Sulfur cinquefoil (Potentilla recta)
  11. Common tansy (Tanacetum vulgare)
  12. Oxeye daisy (Leucanthemum vulgare)
  13. Houndstongue (Cynoglossum officinale)
  14. Yellow toadflax (Linaria vulgaris)
  15. Saltcedar (Tamarix spp.)
  16. Curlyleaf pondweed (Potamogeton crispus)
  17. Hoary alyssum (Berteroa incana)
Hill County Noxious Weeds

Common Burdock (Arctium minus)

Priority 3 Regulated Plants (NOT MONTANA LISTED NOXIOUS WEEDS) 

These regulated plants have the potential to have significant negative impacts. The plant may not be intentionally spread or sold other than as a contaminant in agricultural products. The state recommends research, education and prevention to minimize the spread of the regulated plant.

(a) Cheatgrass (Bromus tectorum)
(b) Hydrilla (Hydrilla verticillata)
(c) Russian olive (Elaeagnus angustifolia)
(d) Brazilian waterweed (Egeria densa)
(e) Parrot feather watermilfoil (Myriophyllum aquaticum or M. Brasiliense)

Neighbors weeds bothering you???

Contact us and we will contact them.

What we can do for you?

Weed education – pamphlets, books, etc..
Control noxious weeds along county rights-of-way
Assist landowners with weed problems
Design weed management plans
Assist in noxious weed trust fund grants
Mowing contracts
Assist with bio-control releases
Weed law enforcement “Noxious Weed Law”
GPS weed mapping
Commercial spraying
Noxious weed seed free hay inspections and certifications
Backpack rentals
Source of various control agents for noxious weeds and rodent control
Designated county rodent control dealer
Gas cartridges

Hill County Weed District Official Complaint

Weed Tours

What you can do for us?

Find new infestations and report them.
Control current infestations
Buy certified hay
Buy certified seed
Clean vehicles after leaving an infested area
Learn to identify all noxious weeds

Terry-Turner-Weed-Mosquito-District-copy-200x300TERRY TURNER

Weed/ Mosquito District Supervisor



Mosquito District

Terry Lilletvedt, Chairperson
Rick Harada, Member
Kim Cripps, Member
Brad Ruhkamp, Member
Debbie Walker, Member

Our core function is to prevent disease and save lives. Mosquitoes have the greatest public health importance among all insects. Not only because of being a nuisance and blood feeders, but also transmitting disease among humans and animals.

Key points to know about mosquitoes

  • Mosquitoes must have water to complete their life cycle.
  • Only seven days are required to complete their life cycle during warm weather.
  • Mosquitoes do not develop in grass or shrubbery, although flying adults frequently rest in these areas.
  • Only the female mosquito bites to obtain a blood meal. The male mosquito lives on plant juices.
  • The female may live as long as three weeks during the summer or may months over the winter