HomeMy WebLinkAboutDoc. 2009-180 - 2009 Noxious Weed ListDeschutes County Board of Commissioners
1300 NW Wall St., Suite 200, Bend, OR 97701 -1960
(541) 388 -6570 - Fax (541) 385 -3202 - www.deschutes.org
AGENDA REQUEST & STAFF REPORT
For Board Business Meeting of April 8, 2009
Please see directions for completing this document on the next page.
DATE: April 1, 2009
FROM: Dan Sherwin Road Department 322 -7135
TITLE OF AGENDA ITEM:
2009 Deschutes County Noxious Weed List
PUBLIC HEARING ON THIS DATE? NO
BACKGROUND AND POLICY IMPLICATIONS:
County Commisssioners consider approval for the updated 2007 Noxious Weed List recommended by
the Deschutes County Weed Board.
FISCAL IMPLICATIONS:
None
RECOMMENDATION & ACTION REQUESTED:
Approve the 2009 Deschutes County Noxious Weed List.
ATTENDANCE:
Dan Sherwin, Vegetation Manager
DISTRIBUTION OF DOCUMENTS:
Wanda and Dan Road Department
March 26, 2009
To: Board of County Commissioners
From: Deschutes County Weed Advisory Board
Subject: 2009 Deschutes County Noxious Weed List
Commissioners,
Weed Advisory Board
61150 SE 27th St • Bend, Oregon 97702
(541) 322 -7135 • FAX (541) 388 -2719
The Deschutes County Weed Advisory Board met March 12, 2009 at their regular monthly
meeting. The Deschutes County Noxious Weed List was reviewed and it was determined
that the current list will remain the same. Attached is the recommended 2009 noxious
weed list.
If you have any concerns or comments, please notify the Weed Advisory Board or Dan
Sherwin, Vegetation Manager.
Sin
aul Stell, Chairman
Deschutes County Weed Advisory Board
DESCHUTES COUNTY WEED LIST
Deschutes County Weed Policy and Classification System
"NOXIOUS WEED" means any weed designated by the Deschutes County Board of
Commissioners that is injurious to public health, agriculture, range, recreation, wildlife, or
any public or private property; any weed that impacts and displaces desirable vegetation,
such as Threatened and Endangered Plant Species, wildlife habitat, and livestock.
It is acknowledged that certain noxious weeds have become so thoroughly established and
are spreading so rapidly on state, county, and federally owned lands, as well as on private
land, that they may have been declared by Oregon Revised Statue 570.505 to be a menace
to public welfare. Steps leading to eradication where possible, are necessary. It is further
recognized that the responsibility for such eradication and /or intensive control rests not
only on the private landowner and operator, but also the county, state and federal
government.
Noxious Weed Control Rating System
Noxious Weeds, for the purpose of this system, shall be designated "A ", "B" or "C"
1. An "A" designated weed is: a priority noxious weed designated by the Deschutes
Weed Board as a target weed species on which the Weed Control District will comply
with a state wide management plan and /or implement a county wide plan for intensive
control and monitoring. An "A" rated weed may also be a weed of known economic or
ecological importance which occurs in small enough infestations to make
eradication/containment possible; or one that is not known to occur here, but its presence
in neighboring counties make future occurrence here seem imminent.
Recommended Action: Infestations are subject to intensive control when and where
found.
2. A `B" designated weed is: a weed of economic importance, which is both locally
abundant and abundant in neighboring counties.
Recommended Action: Moderate control and or monitoring at the county level.
3. A "C" designated weed is: a weed that has the potential to cause harm to agriculture
production and transportation systems.
Recommended Action: Control and monitoring at the county level.
This list is available, upon request, to the public from the Deschutes County
Weed/Vegetation Manager, 322 -7135.
2009
"A" Rated Weeds
African rue
Buffalobur +
common houndstongue
dyer's woad -
false brome *
hydrilla
leafy spurge +
meadow knapweed -
Mediterranean sage +
medusahead rye +
musk thistle -
orange hawkweed +
perennial pepperweed +
purple loosestrife +
rush skeletonweed
Russian knapweed +
Scotch thistle +
squarrose knapweed
sulfur cinquefoil
saltcedar tamarix +
tansy ragwort +
whitetop; hoary cress +
wild carrot +
yellow starthistle -
"B" Rated Weeds
Canada Thistle +
dalmation toadflax +
diffuse knapweed +
kochia (annual) +
myrtle spurge +
poison hemlock +
puncturevine +
Russian thistle +
Scotch broom +
spotted knapweed +
yellow toadflax or "butter and eggs" +
yellow flag iris +
2009
Peganum harmala
Solanum rostratum
Cynoglossum officinale
Isatis tinctoria
Brachypodium sylvaticum
Hydrilla verticillata
Euphorbia esula
Centaurea pratensis
Salvia aethiopis
Taeniatherum caputmedusae
Carduus nutans
Hieracium aurantiacum
Lepidium latifolium
Lythrum salicaria
Chondrilla juncea
Acroptilon repens
Onopordum acanthium
Centaurea virgata
Potentilla recta
Tamarix ramosissima
Senecio jacobaea
Lepidium draba
Daucus carota
Centaurea solstitialis
Cirsium arvense
Linaria dalmatica
Centaurea diffusa
Kochia scoparia
Euphorbia myrsinites
Conium maculatum
Tribulus terrestris
Salsola spp.
Cytisus scoparius
Centaurea biedersteinii
Linaria vulgaris
Iris pseudacorus
"C Rated Weeds
bur buttercup +
bull thistle +
cheat grass ( Downy brome) +
common mullein +
dodder +
field bindweed +
filaree redstem +
horseweed +
poverty sumpweed +
quackgrass +
South American waterweed +
spiny cocklebur +
St Johnswort +
sweet clover(s) -Only on Right of Ways +
Western Water - hemlock / +
+
*
/
Ranunculus testiculatus
Cirsium vulgare
Bromus tectorum
Verbascum thapsus
Cuscuta spp.
Convolvulus arvensis
Erodium cicutarium
Conyza Canadensis
Iva axillaries
Agropyron repens
Elodea densa
Xanthium spinosum
Hypericum perforatum
Melilotus officinalis
Cicuta douglasii+
Currently in the County
All known populations have been treated
Weeds Added this Year
Natives but Poisonous to Animals or Humans
2009