IVES Technical Reviews (Oct 2021)

Auxin-type herbicide drift: effects on grapevine leaf functioning and reproductive performance

  • Gerhard Rossouw,
  • Suzy Rogiers,
  • Bruno Holzapfel,
  • Leigh Schmidtke

DOI
https://doi.org/10.20870/IVES-TR.2021.4869

Abstract

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Auxin-type herbicides are widely used to control broad-leafed weeds in cereal crop fields and pastures. Vapour drift, however, can spread several kilometres and therefore reach nearby vineyards. When grapevines are exposed to these chemicals, the active constituents induce phytotoxic effects including injury to foliage and impairment of reproductive development. The aim of this article is to outline the key potential implications of auxin-type herbicide drift exposure on leaf functioning and grapevine reproductive performance.