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Photosystem I Energy Diverters

  1. Kevin Vaughn

Published Online: 15 APR 2003

DOI: 10.1002/047126363X.agr196

Encyclopedia of Agrochemicals

Encyclopedia of Agrochemicals

How to Cite

Vaughn, K. 2003. Photosystem I Energy Diverters. Encyclopedia of Agrochemicals. .

Author Information

  1. USDA-ARS-MSA, Stoneville, Mississippi

Publication History

  1. Published Online: 15 APR 2003


The photosystem (PS) I diverter herbicides include several of the oldest in the herbicide arsenal, introduced in the mid-late 1950s by ICI (now Syngenta) and still commercially available. Because of this long-term use, a sizeable literature exists on their use as herbicides, their biochemical effects on mammals and plants, and the development of herbicide-resistant weed biotypes. Because of this voluminous literature, this review will cite mainly recent references, referring the reader to previous reviews for further details of the earlier literature.


  • photosystem I energy diverter herbicides;
  • herbicide resistance;
  • paraquat;
  • biochemical effects;
  • herbicide-resistant weed biotypes;
  • Hordeum Glaucum;
  • Conyza