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Noxious Weeds

OPB | Feb. 1, 1998 7:30 p.m.

It has been called a "biological emergency." Non-native, noxious weeds such as scotch broom, diffuse knapweed and starthistle are taking over huge areas of Oregon crowding out native plants and destroying the land.

First Broadcast: 1998
Producer: Eric Cain

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