Defoliant

Defoliant
This article is about the chemicals used to remove leaves. For animals that eat leaves, see Folivore.
A helicopter sprays defoliant on a dense jungle area in the Mekong delta (07/26/1969).

A defoliant is any chemical sprayed or dusted on plants to cause its leaves to fall off. A classic example of a highly toxic defoliant is Agent Orange, which the United States armed forces used abundantly to defoliate regions of Vietnam during the Vietnam War from 1961 to 1970.

Defoliants differ from herbicides in that the former seeks mainly to strip leaves from plants, and the latter is used to destroy or inhibit the growth of plants.

Defoliants are used in cotton production to aid harvesting.[1]

See also

References

  1. ^ Gwathmey, C.O.; Craig Jr., C.C. (2007). "Defoliants for cotton". In David Pimentel. Encyclopedia of Pest Management. 2. CRC Press. p. 135. ISBN 1420053612. http://books.google.co.uk/books?id=DxrMm9lMFUAC&pg=PA135. 

External links


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Look at other dictionaries:

  • défoliant — défoliant, iante [ defɔljɑ̃, jɑ̃t ] adj. et n. m. • v. 1966; de l angl. amér. defoliant ♦ Didact. Qui provoque la défoliation. ♢ N. m. Produit chimique destiné à la défoliation. ⇒ herbicide. Territoires dévastés par les défoliants et le napalm. ● …   Encyclopédie Universelle

  • defoliant — defoliánt adj. m.(sil. li ant), pl. defoliánţi; f. sg. defoliántă, pl. defoliánte Trimis de siveco, 10.08.2004. Sursa: Dicţionar ortografic  DEFOLIÁNT, Ă adj., s.n. (Substanţă) care serveşte pentr …   Dicționar Român

  • Defoliant — Défoliant Un défoliant est un produit dont l effet est de faire tomber les feuilles des arbres par sa toxicité. Les défoliants peuvent être utilisés comme une arme chimique, comme l a fait l armée américaine durant la Guerre du Viêt Nam avec l… …   Wikipédia en Français

  • defoliant — 1943, from DEFOLIATE (Cf. defoliate) + ANT (Cf. ant) …   Etymology dictionary

  • defoliant — ► NOUN ▪ a chemical used to remove the leaves from trees and plants …   English terms dictionary

  • defoliant — ☆ defoliant [dē fō′lē ənt ] n. a chemical substance that causes leaves to fall from growing plants …   English World dictionary

  • Défoliant — Dans la famille des biocides, et le groupe des pesticides, un défoliant est un herbicide qui a pour premier effet voulu de faire tomber les feuilles des arbres par sa toxicité foliaire. Sommaire 1 Usages 1.1 En agriculture 1.2 Usages militaires …   Wikipédia en Français

  • defoliant — UK [diːˈfəʊlɪənt] / US [dɪˈfoʊlɪənt] noun [countable/uncountable] Word forms defoliant : singular defoliant plural defoliants chemistry a chemical used for making the leaves fall off a tree or plant …   English dictionary

  • defoliant — noun An agent used to defoliate plants. ::Agent Orange is a defoliant …   Wiktionary

  • defoliant — [[t]di͟ːfo͟ʊliənt[/t]] defoliants N MASS A defoliant is a chemical used on trees and plants to make all their leaves fall off. Defoliants are especially used in war to remove protection from an enemy …   English dictionary

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