Damage to tomatoes grown in contaminated compost (Photo credit: Whitney Cranshaw, Colorado State University, Bugwood.org)

Herbicide Residue in Manure, Hay, and Compost

What is Herbicide Residue? In recent weeks, the Oregon Dept of Agriculture announced the discovery of contaminated soil and compost materials from an herbicide known as clopyralid.  This contaminated material was distributed to gardeners in the region causing significant damage to garden plants and landscapes.  This unfortunate event helps to raise awareness of the persistence […]

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It is National Pollinator Week!

It is National Pollinator Week! Join all of us here at the WeedWise program in celebrating our native pollinators. June 22-28, 2019 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. […]

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June’s Weed of the Month: Policeman’s Helmet

Policeman’s helmet (Impatiens glandulifera) is an invasive weed that grows in ditches, wetlands, and along waterways. Native to India, this fast-growing annual was introduced as an ornamental plant due to its impressive growth and the showy purple, pink or white blooms. Since introduction, it has escaped cultivation to become the dominant riparian vegetation in many […]

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May’s Weed of the Month: Orange Hawkweed

Orange hawkweed (Hieracium aurantiacum) is a relatively new invasive weed in Clackamas County.  With your help, our team plans to keep it from becoming a common problem for landowners! A member of the sunflower family, orange hawkweed is native to central and southern Europe and grows in open areas like gravel pits, roadsides, meadows, pastures, […]

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It’s Native Plant Appreciation Week!

Let’s Celebrate! The WeedWise program is in the business of preventing and controlling invasive weeds.  As anyone that spends much time battling invasive weeds can attest, our work can feel a little daunting at times.  We all have those days when we are battling a rather bothersome patch of invasive weeds and lose sight of […]

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Newly discovered organic herbicide shown to be safe and effective against all invasive weeds!  

Invasive weeds can be extremely damaging and pose a real threat to the social, economic, and ecological health of our communities.  One important tool for controlling large infestations of invasive weeds is herbicides. Herbicides have been used to manage large infestations of invasive weeds since the 1940s, but their use is problematic for some growers.  […]

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April’s Weed of the Month: Garlic Mustard

Garlic mustard (Alliaria petiolata) is an increasingly invasive weed in our community.  Native to central and western Europe, this fast-growing plant commonly invades sites such as parks, trails, roadsides, and streamsides. April is a great time to manage this important invasive weed on your property. Sometimes referred to as Jack-by-the-hedge, garlic mustard is easily identified […]

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Combating Invasive Weeds in the Shadow of the Novel Coronavirus

Here at the WeedWise program, we are all too familiar with the science and strategies behind stopping and slowing the spread of harmful threats to our communities.  Topics such as prevention, early detection, rapid response, containment,  exclusion,  and the disruption of vector pathways are not only familiar to us but are also daily discussion topics […]

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Clackamas SWCD, General Manager Position Announcement: Open Until Filled

The Clackamas Soil and Water Conservation District seeks an experienced General Manager to serve as the chief executive officer of the District. This position acts on behalf of the District Board of Directors and represents the District to public and private customers and partner organizations. The General Manager provides overall leadership for personnel, technical and […]

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