In 2013, DNR biologists discovered hydrilla – an invasive weed known to impede recreational uses of waterways – in the southern portion of Deep Creek Lake. Hydrilla has not been found in the majority of the lake at this time. In response, DNR convened a nationwide expert panel to evaluate all potential Hydrilla control strategies, and found that the best, most effective action would be to treat the lake-bottom where Hydrilla has been found with small amounts of herbicide starting in late May and continuing through the summer. Exact dates will be posted prior to application. The amounts to be used have been proven harmless to humans, waterfowl and wildlife, and will have no restrictions for drinking, swimming and or eating fish post treatment at label application rates.
.pdf map of where hydrilla has been found at DCL.