Garden loosestrife (Lysimachia vulgaris) is one of the most recent additions to Oregon’s noxious weed list. As a class A noxious weed, the goal of land managers is to rapidly control infestations before they have a chance to gains a foothold. One critical component of this is approach is to increase awareness of this new […]
The old adage “many hands make light work” could not be truer when it comes to weed management. The WeedWise Program routinely works with a number of partnering entities and organizations across our region to combat invasive weeds. This include local, state, and federal agencies as well local non-profits and watershed councils. Our partnerships also […]
Its October, and that means its time for a new Weed of the Month! We are working with our partners at the Columbia Gorge Cooperative Weed Management Area to promote invasive Italian arum (Arum italicum) as our weed-of-the-month for October. Italian Arum, also known as “orange candleflower” and “Italian lords and ladies,” is a non-native […]
We are currently seeking qualified candidates for a WeedWise Program specialist position. All applications materials must be submitted to the District no later than 4:30 PM on Oct 14, 2016. About the position The WeedWise Program Specialist is a full-time, at-will non-exempt position that will provide project management to the Clackamas Soil and Water Conservation […]
Its September, and that means its time for a new Weed of the Month! We are working with our partners at the Columbia Gorge Cooperative Weed Management Area to promote invasive knotweeds (Fallopia sp.) as our weed-of-the-month for September. Knotweed is a horribly invasive plant unleashed on the countryside by well-intentioned gardeners attracted to its […]
Its August, and that means its time for a new Weed of the Month! We are working with our partners at the Columbia Gorge Cooperative Weed Management Area to promote Puncturevine (Tribulus terrestris) as our weed-of-the-month for August. Puncturevine is a sprawling annual plant that forms a dense mat with very sharp, spiny seed heads. […]
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 […]
This past season we have seen a rise in the number of Oblong spurge (Euphorbia oblongata) sites appearing in Clackamas County. Oblong spurge is a class A noxious weed in the state of Oregon, and eradication of this species is required across the state. It is known to be highly aggressive and can displace native […]
We are once again partnering with our friends from the Columbia Gorge Cooperative Weed Management Area to feature invasive knapweeds as the target weed for the month of July. Clackamas County has many kinds of knapweed, but the three most commonly found in our area are Spotted, Diffuse and Meadow. Although slightly different, they all […]
Summer is here and the weeds and wildflowers are blooming all around us. With the burst of summer color, come the many bees, flies, beetles, moths, and butterflies that serve to pollinate these plants. Pollinators are vitally important to the health of our natural areas and local economies. Invasive weeds can play an important role […]
