Invasive elodea decade history in the Chena slough with mitigation and persistent infestation.

Invasive Elodea has been observed since 2020.

Elodea was first observed in Harding Lake in 2020 growing in isolated patches and has since been assessed and managed by the Fairbanks Soil and Water Conservation District and its partners.

Elodea was discovered in Alexander Lake in 2014 by researchers checking minnow traps. At the time, it covered 20 percent of the lake but now has spread to 90 percent.

Elodea, a fast-growing leafy plant, is now in a roadside ditch at the marsh, and a response plan is in the works.

Elodea, an aggressive invasive plant, was discovered this month in the lake used by hundreds of floatplanes, raising fears that it will be spread to multiple sites within flying reach.