Australasian Plant Pathology

, Volume 19, Issue 4, pp 132–133 | Cite as

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

  • T. Wicks
  • B. Hall


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.


  1. Wicks, T.J. (1988)—Effect of metalaxyl on the control of Phytophthora crown rot of almonds. Australian Journal of Experimental Agriculture 28: 547–552.CrossRefGoogle Scholar
  2. Wicks, T.J. and Hall, B. (1988)—Preliminary evaluation of phosphorous acid, fosetyl-Al and metalaxyl for controlling Phytophthora cambivora on almond and cherry. Crop Protection 7: 314–318.CrossRefGoogle Scholar
  3. Wicks, T.J. and Lee, T.C. (1986)—Phytophthora crown rot of almond trees. Australian Journal of Agricultural Research 37: 277–287.CrossRefGoogle Scholar

Copyright information

© Australasian Plant Pathology Society 1990

Authors and Affiliations

  • T. Wicks
    • 1
  • B. Hall
    • 1
  1. 1.Department of AgricultureAdelaide

Personalised recommendations