• Recreate only on established roads and trails and in campsites away from currently infested areas. Failing to do so could possibly spread weed seeds via clothing, camping equipment, tools, or other materials.
• Educate yourself to avoid unknowingly picking unidentified wild flowers and discarding them along trails or roadways that are in weed-free condition.
• Check boats, jet skis, water towables, floating devices, and water craft haul trailers for evidence of water plants adhering to surfaces. Before leaving the boat launch facilities, remove any visible mud and plant material from your equipment including the anchor, the props, and anything that entered the water. Dispose of collected items in proper trash receptacles commonly found at public boat access sites.
• Boaters and anglers are strongly urged to clean and dry waders, bait buckets, fishing lures, tackle, nets, and other fishing and boating gear upon arriving home.
• Inspect and clean motorized off-road trail vehicles, all-terrain vehicles, mountain bikes, and other non-motorized vehicles of weeds and seeds before leaving the site or trail-head. It is imperative that special attention is given to the wheels of such vehicles.
• When using pack animals in non-infested areas, thoroughly clean coats and hooves and carry only feed that is certified “weed free”.
• Learn about plants and be able to identify noxious weeds that are invasive to your area. Do not buy noxious weed seeds from seed companies or noxious weeds being sold as ornamentals from floral shops. Also, be very selective when choosing your nursery stock to be used in home landscaping. Nurseries and garden shops continue to sell plants that are listed on state and local noxious weed lists.
• If by chance you are unable to avoid an infested area, carefully remove all weed seeds and other plant material from clothing (paying close attention to Velcro® fastenings), shoes, camping and hiking gear, and even pets before entering a weed-free area. Furthermore, if you recognize noxious weeds, pull the weeds up by the roots, leaving non-seed-producing plants or plant parts where you found them to dry out. When possible, if you come across seed producing parts, place them in a plastic bag, and either pack them out or dispose of them in the appropriate trash receptacle. Mentally take note and report the description and location of the infestation to the proper agency.
• Commit to a proactive approach to weed management by organizing or becoming involved in county, state, and federal weed-control projects or just simply spreading the word about the negative ecological impacts of noxious weeds and what people can do to help.

• Lincoln County Weed Department
• Montana Weed Control Association
• Montana Department of Agriculture

The following terrestrial noxious weeds are not only widespread and aggressive, but are abundant in many counties throughout the state of Montana as well.

Canada Thistle

Common Tansy

Dalmatian Toadflax

Diffuse Knapweed

Field Bindweed

Hoary Alyssum

Houndstongue

Leafy Spurge

Oxeye Daisy

Russian Knapweed

Saltcedar

Spotted Knapweed

Sulfur Cinquefoil

Whitetop

Yellow Toadflax

The following terrestrial noxious weeds have a limited existence in Montana and may be found in small, scattered, localized infestations. However, these weeds either have the potential to spread or are currently spreading from their existing infestation sites at an alarming rate.

Blueweed

Common Buckthorn

Common Reed

Dyers Woad

Japanese Knotweed

Knotweed Complex

Meadow Hawkweed

Medusahead

Orange Hawkweed

Perennial Pepperweed

Purple Loosestrife

Rush Skeletonweed

Scotch Broom

St. Johnswort

Tall Buttercup

Tansy Ragwort

Yellowflag Iris

Yellow Starthistle

Regulated plants are not a Montana listed noxious weed but have the potential to have significant adverse effects on the environment. Fortunately, some invasive species recognized as a "regulated plant" have not been detected within the state of Montana but are currently present in several neighboring states. A few examples are:

Brazilian waterweed

Cheatgrass

Hydrilla

Parrotfeather

Russian Olive Tree