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Environmental Fate of Triclopyr

  • Allan J. Cessna
  • Raj Grover
  • Don T. Waite
Part of the Reviews of Environmental Contamination and Toxicology book series (RECT, volume 174)

Abstract

Triclopyr, a postemergence herbicide, was first reported in 1975 by Byrd and coworkers. It is a selective systemic herbicide that is rapidly absorbed by the foliage and roots of plants; for example, uptake into wheat and barley leaves was essentially complete 12 hr after treatment (Lewer and Owen 1990). Triclopyr is rapidly translocated throughout plants (Gorrell et al. 1988; Lewer and Owen 1990), primarily by the symplastic pathway, and accumulates in meristematic tissue (Radosevich and Bayer 1979). The herbicide induces auxin-type responses in susceptible plant species that include epinastic bending and twisting of stems and petioles, swelling and elongation of stems, and cupping and curling of leaves. These effects are followed by chlorosis at the growing points, growth inhibition, wilting, and necrosis. Death of susceptible plants occurs slowly, usually within 3–5 wk.

Keywords

High Pressure Liquid Chromatography Sandy Loam Soil North Carolina Aerial Application Soil Adsorption 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 2002

Authors and Affiliations

  • Allan J. Cessna
    • 1
    • 2
  • Raj Grover
    • 3
  • Don T. Waite
    • 4
  1. 1.Research CentreAgriculture and Agri-Food CanadaLethbridgeCanada
  2. 2.National Water Research InstituteSaskatoonCanada
  3. 3.Research StationAgriculture and Agri-Food CanadaReginaCanada
  4. 4.Environment CanadaReginaCanada

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