Japanese knotweed (Fallopia japonica) has been called a “nightmare” and a “botanical bully,” and is considered invasive in many parts of the world. These characterizations give you a pretty good idea of just […]
Archive | Weeds
Detecting, controlling, and eradicating invasive plants are topics captured in the Weeds category. Invaders affect wildlife and crop production. In some cases they pose health risks to people and animals.
Protect Your Forest From Fire
Forest fires are currently raging along the West Coast. Here in Clackamas County, when this time of year rolls around, we cross our fingers, hoping wildfires will not start on our property. Use […]
August Invasive Weed of the Month: Puncturevine
Puncturevine (Tribulus terrestris) is aptly named! This invasive weed has spiny seed heads on it that can easily puncture a bike tire, inflatable raft, animal paw, or footwear. Be on the lookout because […]
Tansy Poisons Livestock – and Neighborly Relationships!
Tansy ragwort (Jacobaea vulgaris) has long tormented hay producers and rural landowners who graze livestock. Horses and cows are especially susceptible to this poisonous weed. In open fields, grazing animals will generally avoid […]
Going Hiking? Clean Your Boots!
As you head out for some well deserved exercise or restorative time in nature, remember to clean your boots before and after you hike. And your sneakers, sandals, and flip-flops too. It’s a […]
July Invasive Weed of the Month: Tansy Ragwort
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 […]
June Invasive Weed of the Month: Policeman’s Helmet
Policeman’s helmet (Impatiens glandulifera) is an invasive annual which threatens streams and rivers throughout the Pacific Northwest. It is designated as a Class B invasive weed in Oregon. This means that it is […]
Oregon (and National) Invasive Species Awareness Week Part 2
What’s better that one National Invasive Species Awareness Week for 2020? How about two? National Invasive Species Awareness Week Part 2 (May 16 – 23, 2020) is upon us! Take some time this […]
May Invasive Weed of the Month: Orange Hawkweed
Orange hawkweed (Hieracium aurantiacum) is a fairly new invasive weed in Clackamas County and, with your help, our WeedWise team plans to keep it from becoming a common problem for landowners! A member […]
