Two major projects continue to move toward controlling this Class A noxious weed in the Pacific Northwest.
The Silver Lake site in northwest Washington State has seen a reduction in this Class A noxious Weed following a protocol of early and late summer treatments with Diquat aquatic herbicide.
Our team also completed a research application program in conjunction with the US Army Corps of Engineers Aquatic Plant Control Research Program and SePRO Corporation on Lake Pend Oreille this summer. This project looked at combinations of herbicides that work well on this noxious weed in laboratory settings scaled up for operational size treatments. The results of this will be tracked over the fall and next year to determine how this laboratory work transfers to the field. Hopefully this will yield two new tools to target this invasive aquatic weed.