Water Hyacinth: The Silent Aggressor

Full-length version
Download MP4
YouTube Clip


  • 1977

Video Details

  • 29:18; color; sound; V-205 RG500; S1187 Number 2


  • This is an educational film about water hyacinth, the invasive aquatic plant that has become a nuisance to Florida waterways. The film discusses the plant's South American origin and its introduction to the United States. Florida hyacinth expert Al Burkhalter of the Florida Department of Natural Resources, along with researchers from the University of Florida, describe the plant's reproductive and adaptive characteristics. The film shows researchers in South America looking for natural predators of hyacinth to import to the United States as a method of control. The film also touches upon the threat the waterborne weed poses to the Florida citrus and fishing industries. Produced by the US Department of Agriculture.

Corporate Creator

Corporate Subject

Geographic Subject

Personal Subject