| 11. | _Myriophyllum verticillatum ( milfoil ).
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| 12. | In 2006, Eurasian milfoil, an aquatic invasive species, was discovered in Priest Lake.
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| 13. | Milfoil was recorded on the data sheets only if it was found at the survey point.
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| 14. | The invasive plant species that fill Lake Erie consist mainly of Eurasian Milfoil, and Purple Loosestrife,
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| 15. | Medicinal and other herbs grow in abundance, including wormwood, sage, thyme, and milfoil.
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| 16. | Since roughly 2000, hand-harvesting of invasive milfoils has shown much success as a management technique.
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| 17. | The lake is becoming eutrophic, choked with aquatic plants, including invasive water lilies and Eurasian milfoil.
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| 18. | Their droppings raise the level of phosphorus in the lake, leading to excessive growths of algae and milfoil.
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| 19. | Exotic species infestations are a concern, with an existing Eurasian water milfoil population, which is being addressed.
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| 20. | During the summer, over a quarter of the lake's surface area became inhabited by the milfoil.
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