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Entries Tagged as 'noxious weeds'

Distaff thistle

March 31st, 2014 · No Comments · Dept. of Agriculture

Distaff tops noxious weed ‘wanted’ list (Capital Press, 3/30/2014) Plant pest risk assessment for wooly distaff thistle, smooth distaff thistle, Carthamus lanatus, C. baeticus [PDF] (2010) Oregon Department of Agriculture Woolly distaff thistle (Carthanus lanatus) : thistle alert! [PDF] (2009) Oregon Department of Agriculture, Plant Division, Noxious Weed Control Program

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Invasive water primrose

May 1st, 2013 · No Comments · Dept. of Agriculture

Fighting an invasion (Register Guard, 4/29/2013) Water primrose (Ludwigia spp.) : aquatic invader! [PDF] (2011), Oregon State Department of Agriculture Water primrose (Ludwigia ssp.) [PDF] (2012), Oregon State Department of Agriculture

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Arundo donax

November 20th, 2012 · Comments Off · Dept. of Agriculture

Giant reed seen as biofuel — or another kudzu disaster (NBC, 11/17/2012) Plant pest risk assessment for giant reed (Arundo donax L.) [PDF] (2011) Oregon Department of Agriculture

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Invasive species report card

January 9th, 2012 · Comments Off · Invasive Species Council

Oregon’s worst invasive species include mussels and hawkweed and feral pigs (The Oregonian, 1/6/2012) Report card on Oregon’s invasive species activities [PDF] (annual), Oregon Invasive Species Council 100 most dangerous invaders to keep out of Oregon [PDF] (annual)

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Tansy ragwort

August 16th, 2011 · Comments Off · Dept. of Agriculture

After its near eradication, invasive weed is flourishing again, (Register Guard, 8/13/2011) Tansy ragwort (Senecio jacobaea) [PDF], (2009), Oregon. Noxious Weed Control Program

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Tansy ragwort outbreak

May 2nd, 2011 · Comments Off · Dept. of Agriculture, Dept. of Corrections

Tansy outbreak sparks concern (Statesman Journal, 4/30/2011) Noxious weeds-tansy ragwort [PDF] (2008) Oregon Department of Corrections Tansy ragwort (Senecio jacobaea) [PDF] (2009) Oregon Noxious Weed Control Program

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Tansy ragwort

September 10th, 2010 · Comments Off · Dept. of Agriculture

Toxic weed alert: Tansy ragwort is flourishing this year, and that means trouble (The Oregonian, 9/2/10) Tansy ragwort (Senecio jacobaea) [PDF] (2009) Oregon Department of Agriculture, Plant Division, Noxious Weed Control Program

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Lesser celandine

April 1st, 2010 · Comments Off · Dept. of Agriculture

Pretty yellow flower doubles as noxious weed (The Register-Guard, 3/19/10) Lesser celandine: ranunculus ficaria: beautiful invader! [PDF] (2009) Oregon Department of Agriculture, Plant Division, Noxious Weed Control Program

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Noxious weeds quarantine

March 9th, 2010 · Comments Off · Dept. of Agriculture

Under quarantine: Ivy, butterfly bush, Scotch broom and their cultivars face tough new state rules (The Oregonian, 3/3/10) English ivy [PDF] (2009) Oregon Department of Agriculture, Plant Division, Noxious Weed Control Program Butterfly bush [PDF] (2007) Oregon Department of Agriculture, Plant Division, Noxious Weed Control Program Scotch broom [PDF] (2008) Oregon Department of Agriculture, Plant […]

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