Aquatic Invasive Species in the Delta

The Delta Protection Commission supports the control of aquatic invasive species which negatively impact Delta recreational navigation, tourism and water supply. The California State Parks Division of Boating and Waterways (DBW) is the State lead agency in the effort to control the species listed below in the Sacramento-San Joaquin Delta, its tributaries, and the Suisun Marsh. Species that DBW has current permits to control include:

  • water hyacinth
  • water primrose
  • South American spongeplant
  • alligator weed
  • Brazilian water weed
  • Curlyleaf pond weed
  • Eurasion water milfoil
  • Coontail
  • fanwort

Delta residents and businesses are encouraged to learn more about DBW’s Aquatic Weed Control Program and sign up for Weekly Control Treatment Notifications, as well as learn how to the spread of invasive species.

Then-Commissioners Mary Nejedly Piepho (Supervisor, Contra Costa County) and Larry Ruhstaller (Supervisor, San Joaquin County) prepared and submitted a white paper on the negative effects of invasive aquatic weeds to the Delta Plan Interagency Implementation Committee in 2014.