Australasian Plant Pathology

, Volume 19, Issue 4, pp 132–133

Evaluation of phosphonic (phosphorous) acid for the control of Phytophthora cambivora on almond and cherry in South Australia

Authors

  • T. Wicks
    • Department of Agriculture
  • B. Hall
    • Department of Agriculture
Efficacy

DOI: 10.1071/APP9900132

Cite this article as:
Wicks, T. & Hall, B. Australasian Plant Pathology (1990) 19: 132. doi:10.1071/APP9900132

Abstract

Phosphonic acid applied as a soil drench, a foliar spray or a trunk injection before infection prevented the development of cankers in almond and cherry trees inoculated with Phytophthora cambivora. Foliar applications of 2 g phosphonic acid/L in autumn and spring were an effective and practical treatment. Trunk injections were also effectively but in some cases caused severe leaf scorch and leaf drop.

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© Australasian Plant Pathology Society 1990