Skip to main content
SpringerLink
Log in

Control of carrot cavity spot with metalaxyl and phosphorous acid

  • Published:
Australasian Plant Pathology Aims and scope Submit manuscript

Abstract

Metalaxyl, fosetyl-AI, calcium nitrate and phosphorous acid were tested in field trials against carrot cavity spot. Metalaxyl applied to soil at 1 kg/ha at the three to six trueleaf stage was the most consistently effective treatment, reducing the proportion of roots affected by at least 32%. Additional applications made 9-12 weeks later had no further effect on incidence of cavity spot. In one trial, a foliar spray with phosphorous acid at 4 g/l applied to run-off at the five to six true-leaf stage reduced incidence of cavity spot by 78% and increased root weight. Foliar sprays with calcium nitrate or fosetyl-AI had no effect on incidence of cavity spot.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Cohen, Y. and Coffey, M.D. (1986)—Systemic fungicides and the control of Oomycetes. Annual Review of Phytopathology 24: 311–338.

    Article  CAS  Google Scholar 

  • Gladders, P. and Crompton, J.G. (1984)—Comparison of fungicides for control of cavity spot in carrots. Annals of Applied Biology Supplement 104: 36–37.

    Google Scholar 

  • Lyshol, A.J., Semb, L. and Taksdal, G. (1984)—Reduction of cavity spot and root dieback in carrots by fungicide applications. Plant Pathology 33: 193–198.

    Article  CAS  Google Scholar 

  • Maynard, D.N., Gersten, B., Viach, E.F. and Vernell, H.J. (1961)—The effects of nutrient concentration and calcium levels on the occurrence of carrot cavity spot. Proceedings of the American Society for Horticultural Science 78: 339–342.

    CAS  Google Scholar 

  • Saindrenan, P., Darakis, G. and Bompeix, G. (1985) —Determination of ethyl phosphite, phosphite, and phosphate in plant tissues by anion-exchange high-performance liquid chromatography and gas chromatography. Journal of Chromatography 347: 267–273.

    Article  CAS  Google Scholar 

  • Sanders, PL. (1984)—Failure of metalaxyl to control Pythium blight on turfgrass in Pennsylvania. Plant Disease 68: 776–777.

    Google Scholar 

  • Tsao, PH. and Ocana, G. (1969)—Selective isolation of Phytophthora from natural soils on an improved antibiotic medium. Nature, London 223: 636–638.

    Article  CAS  Google Scholar 

  • Vaartaja, O. and Bumbieris, M. (1964)—Abundance of Pythium species in nursery soils in South Australia. Australian Journal of Biological Sciences 17: 436–445.

    Google Scholar 

  • Wheatley, G.A., Hardman, J.A. and Edmonds, G.H. (1984) —Effects of metalaxyl and carbofuran in a fluid-drilling gel on cavity spot incidence and the yield of carrots. Annals of Applied Biology Supplement 104: 38–39.

    Google Scholar 

  • White, J.G. (1986)—The association of Pythium spp. with cavity spot and root dieback of carrots. Annals of Applied Biology 109: 265–273.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. South Australian Department of Agriculture, Loxton Research Centre, 5333, Loxton, South Australia

    G. E. Walker

Authors
  1. G. E. Walker
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Walker, G.E. Control of carrot cavity spot with metalaxyl and phosphorous acid. Australasian Plant Pathology 17, 41–44 (1988). https://doi.org/10.1071/APP9880041

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1071/APP9880041

Keywords

Search

Navigation