Attachment_1_-_Klamath_County_Noxious_Weeds_1.pdf
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- Attached to
- Lost River Noxious Weed Abatement Federal contract opportunity
- Solicitation number
- 140R2026Q0028
About this file
This is an Order issued by the Klamath County Board of Commissioners declaring noxious weeds and establishing weed control requirements for Klamath County, Oregon in calendar year 2025. The order was approved on January 7, 2025, under Order No. 2025-027 and is issued under the authority of ORS 569.360.
The order designates 52 weed species across three control categories. "A" designated weeds (29 species) require intensive control when and where found, as they are either known to occur in small infestations where eradication is possible or are not currently present but pose an imminent risk due to neighboring county occurrences. These include Buffalobur, Japanese Knotweed, Purple Loosestrife, and Russian Knapweed, among others. "B" designated weeds (17 species) are economically important weeds that are abundant in some county areas but have limited distribution elsewhere; control levels are determined case-by-case, with biological control as the primary approach when feasible. These include Canada Thistle, Leafy Spurge, Poison Hemlock, and Spotted Knapweed. "C" designated weeds (6 species) are of possible economic importance and abundant throughout most of the county; while not subject to enforcement, control is encouraged through education and landowner discretion. These include Bull Thistle, Common Mullein, and Oxeye Daisy. The entire county is declared a Weed Control District, with all designated weeds subject to control measures according to their classification throughout 2025.
View the file
Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Attachment_2_-_Langell_Valley_Treatment_Areas_1.pdf | ||
| Attachment_4_-_Wilson_Reservoir_Treatment_Areas_1.pdf | ||
| Attachment_3_-_Poe_Valley_Treatment_Areas_1.pdf | ||
| PWS_Lost_River_Weed_Control_Draft_1.pdf |
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Text version
BOARD OF COUNTY COMMISSIONERS
IN AND FOR THE COUNTY OF KLAMATH, STATE OF OREGON
In the Matter of Declaring Klamath County a ) Weed Control District and Declaring Noxious) Weeds in Klamath County for the year 2025. )
ORDER NO . ....;2=0=2.;;;;...5--'0_2_7 _____ _
THIS MATTER COMING ON AT THIS TIME TO BE HEARD before the Klamath County Board of Commissioners and it appearing that said Commissioners under ORS 569.360 may declare noxious weeds which are to be destroyed and prevented from producing seed within the County, and
IT FURTHER APPEARING that the Board of Commissioners has identified the following twenty-nine
(29) weeds as: "A" designated weeds. "A" weeds are weeds of known economic importance which are known to occur in the county in small enough infestations that make eradication/containment possible, or are not known to occur in the county, but their presence in neighboring counties makes future occurrence in Klamath County seem imminent.
Recommended Action: Infestations are subject to intensive control when and where found.
BUFFALOBUR Solam1111 rostratum BLACK HENBANE Hyoscyamus niger COMMON BUGLOSS Anchusa officina!is COMMON CRUPINA Crupina vu/garis CUTLEAF TEASEL Dipsacus /aciniatus DIFFUSE KNAPWEED Centaurea diffi,sa DYER'S WOAD /satis tinctoria FIELD DODDER Cuscuta campestris FLOWERING RUSH Botomus umbellatus HOARY AL YSSUM Berteroa incana HOUNDSTONGUE Cynoglossum officiale JAPANESE KNOTWEED Polygonum cuspidatum MA TGRASS Nardus Stricta MEADOW KNAPWEED Centaurea pratensis ORANGE HA WKWEED Hieracium aurantiacum
PHEASANT'S EYE Adonis aestiva!is PLUMELESS THISTLE Carduus acanthoides PURPLE LOOSESTRIFE lythrum salicaria RUSSIAN KNAPWEED Acropti/on repens SCOTCH BROOM non-ornamental Cytisus scoparius RUSH SKELETONWEED Chondrillajuncea SPINY COCKELBUR Xanthium spinosum SQUARROSE KNAPWEED Centaurea virgata SULFUR CINQUEFOJL Potentilla recta TAURIAN THISTLE Onopordum tauricum TANSY RAGWORT Seneciojacobaea YELLOW FLOATING HEART Nymphoides peltata YELLOW TOAD FLAX linaria vulgaris VEL VETLEAF Abutilon theophrasti
IT FURTHER APPEARING that the Board of Commissioners has identified the following fifteen (17) weeds as: "B" designated weeds. "B" weeds are weeds of known economic importance which in some parts of the county are abundant, but may have limited distribution in other parts of the county. Where implementation of a fully-integrated county wide management plan is infeasible, biological control shall be the main control approach when applicable.
Recommended Action: Control levels as determined on a case by case basis.
CANADA THISTLE Cirsium arvense DALMATIAN TOAD FLAX linaria da/matica HOARY CRESS Cardaria draba LEAFY SPURGE Euphorbia esu/a MEDITERRANEAN SAGE Salvia aethiopsis MEDUSAHEAD RYE Taeniatherum caput-medusae MUSK THISTLE Carduus nutans MYRTLE SPURGE Euphorbia !vlyrsinites PERENNIAL PEPPERWEED lepidium /atifolium
POISON HEMLOCK Conium macu/atum PUNCTUREVJNE Tribu/us terrestris SCOTCH THISTLE Onopordum acanthium SPOTTED KNAPWEED Centaurea stoebe (C. macu/osa) ST. JOHNSWORT (KLAMATH WEED) Hypericum pe,joratum YELLOW FLAG IRIS Iris pseudacorus YELLOW STAR THISTLE Centaurea solstitialis VENTENATA GRASS Ventenata dubia
Page 2 of2 ORDER NO. 2025- 027 __,;;;__,; ____________ _
IT FURTHER APPEARING that the Board of Commissioners has identified the following eight (6) weeds as: "C" designated weeds. "C" weeds are weeds of possible economic importance which in most parts of the county are abundant. While not subject to enforcement regulations, these species can cause similar economic and ecological impacts as other noxious weed species. Education and control recommendations will be the main approach.
Recommended Action: Control is encouraged but levels of control will be detennined by land owners.
BULL THISTLE Cirsium vulgare OXEYE DAISY leucanthemum vulgare COMMON MULLEIN Verbascum thapsus CREEPING BUTTERCUP Ranunculus repens
SCENTLESS FALSE MA YWEED Tripleurospermum pe,foratum WESTERN WA TERHEMLOCK Cicuta douglasii
NOW THEREFORE, IT IS HEREBY ORDERED that all of Klamath County is declared a Weed Control District and the above-named weeds are declared noxious and are to be controlled as indicated through their "A", "B" or "C", designations within the boundaries of Klamath County in the calendar year 2025 .
KLAMATH COUNTY BOARD OF COMl\flSSIONERS
Commissioner
Approved_ X ____ _ Approved __ X ___ _ Approved_ X ____ _
Denied Denied Denied -------- -------- --------
Date 01/07/2025 Date 01/07/2025 Date 01/07/2025
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