Prather, Timothy S.

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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 ...
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Oxeye Daisy

Oxeye daisy is a showy perennial herb that was introduced from Europe. It is a noxious weed in Washington and several Idaho counties. Once established, oxeye daisy competes against grasses, reduces ca ...
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