Knotweed Shrubs: Identification, Biology, and Management

Although woody knotweeds were introduced to the United States as an ornamental, they are now known to break asphalt, disrupt sewer lines, destabilize stream banks, and reduce insect diversity. This pu ...
Sku: PNW610
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Scotch Broom: Biology and Management in the Pacific Northwest

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Western Waterhemlock in the Pacific Northwest

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