The Oregonian is reporting that the appropriately named Battle Ground Lake is under seige from the invasive aquatic plant known as Brazilian elodea (Egeria densa). It is suspected that this well known staple of the aquarium hobby was introduced to Washington and Oregon by unthinking aquarium owners, and is now being spread by boats and waterfowl. Officials are preparing to treat the lake with the herbicide Diquat and then reintroduce native plant species.
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