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IAS Control Methods
Control, expanding prevention and removal methods of invasive species can be divided into three groups:
Methods that help remove invasive species from invaded areas or prevent their expansion to other areas by mechanical procedures (like intensive mowing or sprout removal, hunting, UV lighting, fencing). Mechanical methods are efficient with species that have limited distribution and are easily noticed (like Barbary sheep, wild boar, Amorpha fruticosa), but have no influence on species that move and breed quickly and are hard to notice (like invasive invertebrates).
Chemical methods of removal and control of invasive species population involve implementation of different chemical substances, mostly poisons, in order to remove invasive species from a certain area (like insecticides and herbicides). Although chemical methods can be efficient during the removal and control of invasive species, they are often unselective and can harm other non-targeted species. Also, these methods require significant financial funding, and there is a possibility that invasive species develop a tolerance to these chemical substances.
Biological methods use other living organisms for the control and removal of invasive species. These organisms use invasive species as food or transfer diseases to them. Since the control organisms usually come from native habitats of invasive species, using them must be carefully planned so that they not become invasive themselves or create larger damages than the original invasive species. Therefore, before any introduction of new organisms that would be used in biological control method research and experiments must be done.