The persistence and movement of picloram (4-amino-3,5,6-trichloropicolinic acid) applied to the median and the shoulders of a major highway were investigated. The herbicide formulation was mixed with a particulating agent and applied over a 7-year period to the right-of-way of the Macdonald-Cartier Freeway, Ontario. Soil cores and grass samples were analyzed twice during each summer from seven locations. It is concluded that picloram applied at rates up to 350 grams active ingredient per hectare every three years does not build-up in the top 50 centimeters of soil.

  • Corporate Authors:

    Springer Verlag

    175 5th Avenue
    New York, NY  United States  10010
  • Authors:
    • Sirons, G J
    • FRANK, R
    • Dell, R M
  • Publication Date: 1977-11

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00173563
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jun 28 1978 12:00AM