Torpedograss
Quick Facts | ![]() |
|---|---|
| Scientific name | Panicum repens |
| Origin | Old World |
| Introduction | Late 1800s, forage grass |
| Aquatic community | Emergent |
| Habitat | Dry land to water six feet deep |
| Distribution | Statewide |
| Management effort | Complaint management |
| 2012 public waters / plant acres: | 353 / 11,288 |
Environmental and Economic Concerns
- Thick mats stop navigation and water movement
- Displaces native plants in wet soils and shallow waters
- Resists control due to extensive starch-laden rhizomes
- Most widely dispersed invasive exotic plant in Florida public waters (present in 80%)
- Rapid growth and spread on exposed wet soils
Management Options | |
|---|---|
| Biological | None available |
| Chemical | Glyphosate, imazapyr |
| Mechanical | Harvest floating mats |
| Physical | Drawdown and burn prior to treating with herbicides; flood after treatments |
Florida Fish & Wildlife Conservation Commission, Status of the Aquatic Plant Maintenance Program in Florida Public Waters, Annual Report – Fiscal Year 2007-2008.
Last updated: 13 May 2013


