Chemical treatments are underway at Cave Run Lake to keep boat ramps free of hydrilla. The invasive aquatic weed grows quickly, forcing out other vegetation and impacting fish populations. It was first at Cave Run Lake in Morehead in 2016. Biologists believe fragments of hydrilla were spread from fragments attached to boats, which can remain viable for five days out of the water. The Kentucky Department of Fish and Wildlife Resources urges boaters using Cave Run Lake to inspect boats, bilge, drywells, trailers, motors and all recreation equipment for plant fragments and remove them before leaving the area; steam clean your boat after leaving the lake is possible; and wait five days before launching your boat into a lake that does not have hydrilla.