CANADA THISTLE OXEYE DAISY Orange Hawkweed and Meadow Hawkweed Complex Montana Priority 2A YELLOW TOADFLA Montana Priority 28 Montana Priority 28 Montana Priority 2B Rolb Routledge, Sault Colege, Bugwood org Canada thistle can reach heights of 5 and Oxeye daisies are perennial plants in the Orange hawkweed is a brilliant flame-orange Yellow toadflax, also known as butter and eggs, forms deep and extensive root systems, sunfower family that look similar to Shasta color shaped similarly to a dandelion flower, and is a perennial noxious weed native to Europe and making it difficult to conro Creeping daisies. In fact, they are sometimes sold has multiple flower heads on each tall leafless Asia I was originally introduced to North horizontal roots sprout new plants and expand incorrecty as a desirable and attractivestalk. Meadow hawkweed has a very similar America as an omamental that has become an very aggressively, growing many feet in just ormamental, but unlike Shasta daisies, Oxeye'sflower to its orange counterpart, except that it is invasive species throughout the continental US one season. These roots grow deeper than qickly take over your flowerbed and bright yellow and tends to grow on a taller stalk. all of Canada, and scattered in Mexico. It has a many tilling operations can treat. Flowers beyond. Growing -3all, they are erect plants These plants are some of the first noxious weedsrecognizable flower- head similar to a resemble spotted knapweed in color and that grow in rosettes sporting multiple solitary- you will see flowering in the spring. Both snapdragon and has a pale yellow flower tinged shape, and tend to be smaller than other thistleflowering stems adomed with coarsely-toothed varicties grow on thin hairy stalks that emerge with white and goldenrod orangc. It grows 1-3 species. Leaves are prickly to the touch and hairless leaves. The flowers are much smaller from low rosettes. Meadow hawkweed's leaves tall, appears silvery green with some plants rally require gloves to handle. One plant than their Shasta cousin, at approximately 1-2" tend to be smoother and angle upward, while having a reddish hue at the base, with leaves that s capable of producing between 1,000 toacross with a bright yellow center and bright Orange Hawkweed's leaves are very hairy and are long and slender and alternately arranged up 5,000 seeds annually. This plant reproduces by white petals. This weed produces by means of generally lay lower and closer to the ground the stem. A large mature plant can produce over both seed and root, but primarily from the both seed and creeping rhizomes, with an Both varieties spread primarily by runners similar 50,000 seeds per season, with seeds shown to roots. Seeds can survive burial in the soil for individual plant capable of producing thousands to strawberry plants, although they can also remain viable for as long as 8 years in some of seeds that can remain viable in the soil for as spread by seed. These plants take over quickly by studies. long as 6 years. ycars Burning (NOT FOR CONTROL-only to Prevention Pre-Bloom Herbicide How to Treat growing into a dense mat that excludes desired How to Treat Use Multiple Methods of Treatment Herbicide (use with a surfactant) ® Mowing (prevents seeding but stimlates clear debris prior to spraying) How to Treat How to Treat Prevention (use only certified weed-free seed) Pre-Bloom Herbicide frepeat applications) Improve Conditions for Competitive Forbs vegetative reproduction) Pre-Bloom Herbicide Biological (there is a rust with limited availabiliry-contact Flathead County) Mowing (mowing during or afier flowering Hand-pulling Hand-pulling (only érinfestation is very small and is throughout the season and coming years) Biological (insects available/or management) will disperse seeds) Burning Grazing/Mowing Mowing (must be repeated at least every 3 to 4 weeks over several growing seasons) Burning Grazing (sheep and goats) WEED NEWS & INFORMATION BULLETIN #1 FLATHEAD COUNTY WEED DEPARTMENT WWWFLATHEAD.MT.GOVWEEDS WEEDSCOMPLIANCE@FLATHEAD.MT.GOV 406.758.5798 REMEMBER: If using herbicide, read the label. THE LABEL IS THE LAW CANADA THISTLE OXEYE DAISY Orange Hawkweed and Meadow Hawkweed Complex Montana Priority 2A YELLOW TOADFLA Montana Priority 28 Montana Priority 28 Montana Priority 2B Rolb Routledge, Sault Colege, Bugwood org Canada thistle can reach heights of 5 and Oxeye daisies are perennial plants in the Orange hawkweed is a brilliant flame-orange Yellow toadflax, also known as butter and eggs, forms deep and extensive root systems, sunfower family that look similar to Shasta color shaped similarly to a dandelion flower, and is a perennial noxious weed native to Europe and making it difficult to conro Creeping daisies. In fact, they are sometimes sold has multiple flower heads on each tall leafless Asia I was originally introduced to North horizontal roots sprout new plants and expand incorrecty as a desirable and attractivestalk. Meadow hawkweed has a very similar America as an omamental that has become an very aggressively, growing many feet in just ormamental, but unlike Shasta daisies, Oxeye'sflower to its orange counterpart, except that it is invasive species throughout the continental US one season. These roots grow deeper than qickly take over your flowerbed and bright yellow and tends to grow on a taller stalk. all of Canada, and scattered in Mexico. It has a many tilling operations can treat. Flowers beyond. Growing -3all, they are erect plants These plants are some of the first noxious weedsrecognizable flower- head similar to a resemble spotted knapweed in color and that grow in rosettes sporting multiple solitary- you will see flowering in the spring. Both snapdragon and has a pale yellow flower tinged shape, and tend to be smaller than other thistleflowering stems adomed with coarsely-toothed varicties grow on thin hairy stalks that emerge with white and goldenrod orangc. It grows 1-3 species. Leaves are prickly to the touch and hairless leaves. The flowers are much smaller from low rosettes. Meadow hawkweed's leaves tall, appears silvery green with some plants rally require gloves to handle. One plant than their Shasta cousin, at approximately 1-2" tend to be smoother and angle upward, while having a reddish hue at the base, with leaves that s capable of producing between 1,000 toacross with a bright yellow center and bright Orange Hawkweed's leaves are very hairy and are long and slender and alternately arranged up 5,000 seeds annually. This plant reproduces by white petals. This weed produces by means of generally lay lower and closer to the ground the stem. A large mature plant can produce over both seed and root, but primarily from the both seed and creeping rhizomes, with an Both varieties spread primarily by runners similar 50,000 seeds per season, with seeds shown to roots. Seeds can survive burial in the soil for individual plant capable of producing thousands to strawberry plants, although they can also remain viable for as long as 8 years in some of seeds that can remain viable in the soil for as spread by seed. These plants take over quickly by studies. long as 6 years. ycars Burning (NOT FOR CONTROL-only to Prevention Pre-Bloom Herbicide How to Treat growing into a dense mat that excludes desired How to Treat Use Multiple Methods of Treatment Herbicide (use with a surfactant) ® Mowing (prevents seeding but stimlates clear debris prior to spraying) How to Treat How to Treat Prevention (use only certified weed-free seed) Pre-Bloom Herbicide frepeat applications) Improve Conditions for Competitive Forbs vegetative reproduction) Pre-Bloom Herbicide Biological (there is a rust with limited availabiliry-contact Flathead County) Mowing (mowing during or afier flowering Hand-pulling Hand - pulling ( only érinfestation is very small and is throughout the season and coming years) Biological ( insects available / or management ) will disperse seeds) Burning Grazing/Mowing Mowing (must be repeated at least every 3 to 4 weeks over several growing seasons) Burning Grazing (sheep and goats) WEED NEWS & INFORMATION BULLETIN # 1 FLATHEAD COUNTY WEED DEPARTMENT WWWFLATHEAD.MT.GOVWEEDS WEEDSCOMPLIANCE@FLATHEAD.MT.GOV 406.758.5798 REMEMBER: If using herbicide, read the label. THE LABEL IS THE LAW