A piscicide is a chemical substance which is poisonous to fish. The primary use for piscicides is to eliminate a dominant species of fish in a body of water, as the first step in attempting to populate the body of water with a different fish. They are also used to combat parasitic and invasive species of fish.

Examples of piscicides include rotenone,[1][2] saponins, TFM, niclosamide and Antimycin A (Fintrol).[3]

Plant-based piscicidesEdit

Historically, fishing techniques of indigenous people around the world have frequently included the use of plant-based piscicides. Many of these plants are natural sources of rotenone and saponins.

The genera Tephrosia, Wikstroemia, and Barringtonia are well known as fish poisons.

See alsoEdit


  1. ^ Rotenone as a piscicide
  2. ^ Rotenone Stewardship Program Archived 2007-11-10 at the Wayback Machine
  3. ^ Susan J. Clearwater, Chris W. Hickey, Michael L. Martin Overview of potential piscicides and molluscicides for controlling aquatic pest species in New Zealand Science & Technical Publishing 2008 ISBN 978-0-478-14376-8