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A pest is an animal which has characteristics which people regard as injurious or unwanted. It is possible for an animal to be a pest in one setting but beneficial or domesticated in another (for example, European rabbits introduced to Australia caused ecological damage beyond the scale they inflicted in their natural habitat). An example of serious pests are those organisms which vector human disease, such as rats and fleas which carry the plague disease, or mosquitoes which vector malaria. Other pests compete for the human food supply or agricultural crops, such as coddling moth on apples, or boll weevil on cotton. See also the entries for biological pest control and pesticide.Related is pestilenceA pestilence is an epidemic or even a pandemic of a virulent and highly contagious disease. Cholera or Bubonic plague are examples of pestilence. Pestilence is also one of the Four Horsemen of the Apocalypse, along with War, Famine, and Death. Pestilence, which is a microorganismA micro-organism or microbe is an organism that is so small that it is invisible to the naked eye. The term is synonymous by usage to single- celled organism and unicellular organism even though some unicellular protists are visible to the naked eye, and which causes widespread ( epidemicAn epidemic is generally a widespread disease that affects many individuals in a population. An epidemic may be restricted to one locale or may even be global ( pandemic). An outbreak of a disease is defined as being epidemic, however, not by how many mem) disease.
See also:
- Rabbits as an invasive species
- Invasive speciesPatterson's Curse infest the Warrumbungle National Park in New South Wales''. A species is regarded as invasive if it has been introduced by human action to a location, area, or region where it did not previously occur naturally (i. is not native), become
- VerminAnimals Vermin is a term given to animals which are considered by humans to be pests or nuisances, most associated with the carrying of disease. Disease-carrying rodents and insects are the usual case but the term can also apply to larger animals, on the
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