Impacts from Invasive Plants
Cost to U.S. economy - an incredible $40 billion a year!
Weed control costs are passed on to taxpayers
Property values for ranches, infested with exotic weeds, are known to have decreased by 60%
Highly degraded pasture lands have been sold for housing developments
- Wildlife - Wildlife requires a variety of plants for food and shelter. Monocultures of weeds are destroying the diversity of the plants wildlife need for survival.
- Endangered Species - Invasive weeds threaten two-thirds of all endangered species.
- Soil Erosion - Invasive weeds increase soil erosion, damaging streams that provide habitat for aquatic species.
- Water - Thick stands of invasive weeds can absorb enough water to dry up small reservoirs.
- Soil Chemistry - Some invasive weeds change soil chemistry.
- Wildfire - Invasive weeds are susceptible to wildfires - creating dangerous fire hazards.
- Recreation - Dense patches of weeds restrict access to recreational sites.
- Livestock - Some invasive weeds contain chemicals poisonous to livestock.