English holly (Ilex aquifolium) is a popular evergreen frequently noticed during the month of December ...
The Scourge of Spurge Laurel Spurge laurel (Daphne laureola) is neither a spurge nor a ...
A reality stranger than fiction Straight out of a script from a classic 1950s horror ...
The Thorn in Our Side Himalayan blackberry (Rubus armeniacus) tantalizes us with its sweet fruits in the summer and tortures us with its prickly vines all year long. Also known as Armenian Blackberry, this wide-spread and aggressive weed is native to Armenia and Northern Iran. It is considered an invasive species in many parts of […]
We are very pleased to welcome the newest member of the WeedWise team! The WeedWise program is pleased to announce our newest staff member Courtney Gattuso! Courtney joins us our team as a WeedWise Specialist and as the new shared Coordinator for the 4-County CWMA and Columbia Gorge CWMA. This complex but rewarding position not […]
American Pokeweed The WeedWise program recently received a report of a new invasive weed in our area known as American pokeweed (Phytolacca americana). This observation comes to us from the city of Canby was it has been observed growing along a sidewalk. The affected landowner reported that the pokeweed grew rapidly to establish within one […]
September is the Time to Control Japanese Knotweed Japanese knotweed (Fallopia japonica) has been called a “nightmare” and a “botanical bully,” and is one of the 100 worst global invaders. These characterizations give you a pretty good idea of just how unwelcome this invasive weed is in our community. Japanese knotweed is fast-growing and hardy, […]
Puncturevine (Tribulus terrestris) is aptly named! This invasive weed has spiny seed heads that can easily puncture a bike tire, inflatable raft, animal paw, or footwear. Be on the lookout because it is beginning to make its way into Clackamas County from eastern and southern Oregon. Also known as “goathead”, puncturevine is native to southern […]
Tansy ragwort has long tormented rural landowners who graze livestock. Horses and cows are especially susceptible to this poisonous weed. In open fields, grazing animals will generally avoid eating tansy ragwort, but in heavily infested pastures they may have few other options. Contaminated hay is particularly a problem because it becomes impossible for feeding animals […]
UPDATE: This position has been filled and we are not accepting applications at this time. We are now accepting applications for a WeedWise Specialist & CWMA Coordinator position Clackamas Soil and Water Conservation District seek qualified candidates for a WeedWise Program Specialist/Cooperative Weed Management Area Coordinator position. All applications materials must be submitted to the […]
Tansy ragwort (Senecio jacobaea) is an invasive weed with a long and deadly history in the Pacific Northwest. In Oregon, it is designated as a Class B invasive weed. It is believed to have been introduced here in the early 1900’s through ballast water from a ship. This plant is native to Europe and Asia […]
The WeedWise program was proud to participate recently in an effort to control invasive orange hawkweed and meadow hawkweed along Lolo Pass Rd in the upper portions of the Sandy River watershed in Clackamas County. This work is an ongoing effort between the WeedWise program and our partners from the Mt Hood National Forest, the […]
It is National Pollinator Week! Join all of us here at the WeedWise program in celebrating our native pollinators. June 18-24, 2018 has been designated as National pollinator Week and there are activities going on here in Oregon and across the country! Summer is here and the weeds and wildflowers are blooming all around us. […]