Invasive species can be successfully controlled through biological, chemical, and mechanical methods. We have listed examples and resources from each of these methods here to help you begin to develop your control strategies.

Successful control of an invasive species can mean containment or complete eradication of the species within a given area or ecosystem. In both instances, the species should be prevented from spreading to other areas.

Prevention is of course, the best method for controlling Invasive species. Unfortunately some invasive species are already here, so we must detect them early, and develop a rapid response to these invasions.

Biological Control

Biological control involves controlling one organism with another organism. For example, Cane Toads were introduced to control Cane Beetles in Australia. Unfortunately, Cane Toads have now become a problem species in that country. We should be careful about introducing new species into an area.

Chemical Control

Chemical control usually involves application of herbicides and pesticides. Herbicides are chemical agents that are used to destroy or inhibit plant growth. Pesticides are chemical agents that are used to kill or inhibit the growth or reproduction of pests such as insects.

Physical or Mechanical Control

Physical control methods include things like mowing and hand-pulling of invasive plants, or inserting barriers like nets that prevent fish from entering a river or lake.