Research-based educational materials about Weeds from the OSU Extension Catalog

Image of Invasive Weeds in Forest Land: Yellow Starthistle publication
EC 1600
Published September 2008
Image of Invasive Weeds in Forestland: Knapweeds publication
EC 1596
Published September 2008
Image of Invasive Weeds in Forestland: English Ivy publication
EC 1595
Published September 2008
Image of Invasive Weeds in Forestland: Bull Thistle publication
EC 1588
Published September 2008
Image of Invasive Weeds in Forestland: Butterfly Bush publication
EC 1589
Published September 2008
Image of Invasive Weeds in Forestland: Canada Thistle publication
EC 1590
Published September 2008
Image of Invasive Weeds in Forestland: Gorse publication
EC 1593
Published September 2008
Image of Invasive Weeds in Forestland: Knotweeds publication
EC 1597
Published September 2008
Image of Invasive Weeds in Forestland: Garlic Mustard publication
EC 1592
Published September 2008
Image of Invasive Weeds in Forestland: Tansy Ragwort publication
EC 1599
Published September 2008
Image of Scotch Broom publication
PNW 103
Revised July 2008
EM 8774
Revised July 2008
Image of Puncturevine publication
PNW 133
Revised March 2007
Image of Problem Thistles of Oregon publication
EC 1288
Revised December 2006