- Pest (organism)
A pest is an organism which has characteristics that are regarded by
humansas injurious or unwanted. This is most often because it causes damage to agriculturethrough feeding on crops or parasitising livestock, such as codling mothon apples, or boll weevilon cotton. An animal can also be a pest when it causes damage to a wild ecosystem or carries germs within human habitats. Examples of these include those organisms which vector human disease, such as rats and fleas which carry the plague disease, or mosquitoes which vector malaria.
The term pest may be used to refer specifically to harmful
animalsbut is also often taken to mean all harmful organisms including fungiand viruses. Pesticidesare chemicals that are used to control or protect other organisms from pests.
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). Many weeds are also seen as useful under certain conditions, for instance
Patterson's curseis often valued as food for honeybees and as a wildflower, even though it can poison livestock.
The concept of a pest is
anthropogenic, based on human purposes and perceptions.
pestilence, which is any highly-infectious ( epidemic) disease.
List of common household pests
Pests and diseases of roses
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Pest — may refer to: *Pest, an archaic term for pestilence, originally the Black Death *Pest (hockey), an ice hockey player specialising in aggravating opponents *Pest (music), a British music group *Pest (organism), an undesirable animal or insect… … Wikipedia
pest — /pest/, n. 1. an annoying or troublesome person, animal, or thing; nuisance. 2. an insect or other small animal that harms or destroys garden plants, trees, etc. 3. a deadly epidemic disease, esp. a plague; pestilence. [1545 55; < L pestis… … Universalium
Pest — /pest/; Hung. /pesht/, n. See under Budapest. * * * Any organism, usually an animal, judged as a threat to humans. Most pests either compete with humans for natural resources or transmit disease to humans, their crops, or their livestock.… … Universalium
pest — /pɛst / (say pest) noun 1. an organism considered harmful, as in agriculture, horticulture, buildings either domestic or commercial, etc. 2. a troublesome thing or person; nuisance. 3. Obsolete a deadly epidemic disease; a pestilence. 4. Obsolete … Australian English dictionary
Beneficial organism — In agriculture and gardening, a beneficial organism is any organism that benefits the growing process, including insects, arachnids, other animals, plants, bacteria, fungi, viruses, and nematodes. Benefits include pest control, pollination, and… … Wikipedia
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genetically modified organism — Introduction organism whose genome has been engineered in the laboratory in order to favour the expression of desired physiological traits or the production of desired biological products. In conventional livestock production, crop farming, and… … Universalium
evolution — evolutional, adj. evolutionally, adv. /ev euh looh sheuhn/ or, esp. Brit., /ee veuh /, n. 1. any process of formation or growth; development: the evolution of a language; the evolution of the airplane. 2. a product of such development; something… … Universalium
Mating disruption — (MD) is a pest management technique designed to control certain insect infestations. Specifically, mating disruption involves the use of synthesized sex pheromones to disrupt the reproductive cycle of insects. Contents 1 Mechanism 2 Advantages of … Wikipedia