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Knotweed leaves and flowers.

2020 Knotweed Season Recap

Defending the Tualatin River Watershed against woody knotweed is no easy task. In 2020, nearly 2 acres were treated within the watershed.

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Hawk with wings spread.

Nature vs. Nature: Biological Controls in Conservation

Those of us who grew up watching Animal Planet are familiar with scenes of ferocious hunting and escape – a jarring portrayal of nature’s intense […]

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Image comparing Douglas spirea with pink flowers and purple loosestrife with purple flowers.

Plant This, Not That: Native Alternatives to Pesky Ornamentals

Attractive native plant alternatives don’t harm ecosystems and increase habitat for native birds, wildlife, and pollinators.

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Understory Diversity

Laminated Root Rot: The Inconspicuous Tree Disease

Fungi play a major role in forest ecology. Similar to bacteria and certain critters (like worms, snails, beetles, and termites), fungi facilitate nutrient cycling through […]

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Container plants set out on a yard with woman walking in background

The Benefits of Fall Planting

If you’re ready to put your garden tools away and leave planting until spring, think again! Many folks are surprised to learn that fall is […]

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Puncturevine flowers and burrs

Keep Your Eyes Sharp for Puncturevine!

Puncturevine is an annual groundcover with has spiny seed heads that can puncture bicycle tires, inflatable rafts, and shoes. It is becoming a troublesome pest in our region.

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