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Ten-fold enhancement of 2,4-D effect on water hyacinth by addition of gibberellic acid

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Summary

Under greenhouse conditions the effective concentration of 2,4-D (amine salt) for killing water hyacinths could be decreased 10 times if 2,4-D was applied in combination with extremely low concentrations of gibberellic acid (6 g/ha or higher). This implies that in practice the risk of harming nearby vegetation is considerably reduced, and the cost of spraying programmes might be decreased.

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References

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Authors and Affiliations

  1. Department of Agricultural Research, Royal Tropical Institute, Mauritskade 63, Amsterdam, The Netherlands

    A. H. Pieterse, F. A. Roorda & L. Verhagen

Authors
  1. A. H. Pieterse
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  2. F. A. Roorda
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  3. L. Verhagen
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Additional information

Acknowledgment. The authors are grateful to Mr G.W. Elson from ICI for sending a sample of Berelex.

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Pieterse, A.H., Roorda, F.A. & Verhagen, L. Ten-fold enhancement of 2,4-D effect on water hyacinth by addition of gibberellic acid. Experientia 36, 650–651 (1980). https://doi.org/10.1007/BF01970116

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  • DOI: https://doi.org/10.1007/BF01970116

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