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Stevens County 2008 Noxious Weed List
Approved on February
26, 2008 pursuant to RCW 17.10.090-17.10.100
INTRODUCTION:
The Stevens County
Noxious Weed Control Board believes that the prevention and
eradication of newly invading noxious weed species yields the
greatest return for the resource investment. This is best
achieved through an intensive survey and inventory program
allowing for early detection and early action. Education and
awareness are an integral part of prevention and early
detection. Being familiar with what is growing around us is the
best way to assure that when a new invader arrives, it will be
noticed and dealt with at the most effective stage.
Following a public
hearing held on February 26, 2008, the Stevens County Noxious Weed
Control Board of Directors voted
to adopt all Class A, all
Class B Designate and certain Class B noxious weeds from
the 2008
WA State Noxious Weed
List. Even though we
include all A and B-designate weeds on our County list, only
those that are CURRENTLY FOUND GROWING OR ARE KNOWN TO HAVE
GROWN PREVIOUSLY (reported sightings within the past five years)
in Stevens Co. are listed here. They are divided according to
control requirements:
Section 1)
These CLASS A weeds have been found as single plants or in very limited
populations. Prevention, early detection and eradication is high
priority. Cost share may be available at Board discretion.
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Section 2)
These Class B Designate
weeds are located in portions of the county in very limited or
moderate populations. Preventing seed production, preventing
further spread, reducing existing population sizes, inventory
and education are the priorities. Cost share may be available at
Board discretion. |
Section 3)
NOTE the special
control requirements for the below listed weeds differs dependent
upon where in the county they are. Read
Carefully. These weeds are on the
State list as Class B Designate in some areas of the county and Class B
in others. This is due to the heavy infestations that occur in
relatively condensed regions of the county while they occur only in
light or moderate infestations elsewhere. To help prevent further spread
of these weeds, the Board has elevated the control requirements in the
areas where these 3 weeds are not listed as designates by the State
to include: a buffer
strip of at least forty (40) feet in width must be maintained along
boundaries with adjoining landowners and along travel corridors
throughout the county. |
plumeless
thistle
Carduus acanthoides
-considered
Class B Designate, with the same requirements outlined in
section (2) above, south of Highway 20 from Pend Oreille Co to
Ferry Co (also known as Highway 395 between Colville and Lake
Roosevelt). North of the highway, the buffer strip as described
above applies. |
rush skeletonweed
Chondrilla
juncea
-considered
Class B Designate, with the same requirements outlined in
section (2) above, in all areas north of Township 30 North.
South of Township 30 North, the buffer strip as described above
applies. |
yellow
starthistle
Centaurea
solstitialis cost
share '08
-considered
Class B Designate, with the same requirements outlined in
section (2) above, in all areas outside the approximately 14
square mile area known as "Gold Hill" near Kettle
Falls (exact boundary description is in
WAC 16-750). Within the
"Gold Hill Area", the buffer strip as described above
applies. |
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Section
4)
This weed is listed as Class B Designate in most of the
county but it is a Class B in a specific section. This is
due to the relatively heavy infestation that occurs in a
small area. Because it is an aquatic weed, the buffer strip
as described above does not apply. |
yellow
floating heart
Nymphoides peltata
-considered class
B Designate, with the same requirements outlined in section
(2) above, everywhere EXCEPT the Spokane River between Long
Lake Dam and Nine Mile Dam where it is a Class B weed. |
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Section 5)
These weeds
are normally grown as ornamentals. If they are found to have
escaped intentional landscape planting and appear to be spreading in
the "wild" control may be required. |
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Section
6)
These Class B
weeds exist in moderate to heavy populations in much of the
county. To help prevent further spread of these weeds, a
buffer strip of at least forty (40) feet in width must be
maintained along boundaries with adjoining landowners and
along travel corridors. Beyond this buffer zone, the focus
will be on assisting landowners one-on-one with control
recommendations and technical assistance when requested and
utilizing biological control techniques when available.
Understand, these weeds are recognized as being extremely
detrimental, but due to the widespread infestations, we feel
voluntary management is generally the wisest utilization of
the Weed Board’s and the landowner’s limited resources. |
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Section 7)
Additionally,
at the discretion of the Wed Board, any site infested with
state listed noxious weeds, whether within an area where the weeds are
normally required to be controlled or not, that poses a threat of the
spread of propagules (seeds, roots, vegetative parts) through the
transport of contaminated materials, may require control and may be
subject to enforcement by the Board. These sites include but are
not limited to gravel pits, quarries, landscape materials, etc.
Click here
(MSdoc)
OR HERE (PDF)
for an easily printable version of the Stevens Co 2007 Weed
List
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You can view and print
a brochure of all 138 weeds on the State Noxious Weed list by accessing the
State
Weed List 2008 (MSdoc) here. OR State
Weed List 2008 (PDF) here. |
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DEFINITIONS
of some of the legal terms mentioned above can be found in our glossary |
EXPLANATION
OF LISTING PROCESS
EACH COUNTY WEED BOARD MUST
adopt all State classified A and B-designate weeds on their County Weed
Lists. However, counties may choose which of the State classified B and
C weeds will be placed on their County Weed List dependent upon the
individual concerns of each county. Additionally, a County Weed Board
may elevate the classification and
corresponding control requirements of any weed on the State Weed List.
NOT INCLUDING A NOXIOUS
WEED ON our County Weed List does not mean that it has no
significant impact or that it is not found in the county. In order to
use resources (time, equipment, dollars) in the most effective and
efficient manner possible, the SCNWCB has chosen to limit the number of
State classified B and C weeds on our county list. Unfortunately,
several of the noxious weeds on the State Weed list are already
established well beyond the point where we feel a significant impact can
be made towards reducing the population of the weed without a
substantial allocation of resources going toward that one weed.
IN THE CASE OF WEEDS
that are well established, wide spread and/or not included on our list,
we feel a strong education/awareness program with an emphasis on
voluntary landowner compliance is the best use of resources. Biological
control agents (usually insects) can be one of the best management tools
for weeds in this category. Many bioagents are already established
in the county and the impact they are having on weeds such as diffuse
and spotted knapweed, Canada, plumeless and musk thistle, rush
skeletonweed and St. Johnswort is visible. The redistribution of
bioagents within the county and the continued build up of successful
agents or introduction of new agents, when available, will be encouraged
and supported by the weed board. Support by the weed board may
include using staff or volunteer labor, purchasing or otherwise making
available appropriate equipment, sponsoring training opportunities and
buying the biocontrols or sharing the cost with landowners as approved
by the Board.
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