Potato Research

, Volume 32, Issue 1, pp 91–99 | Cite as

Factors influencing the control of potato gangrene by fungicide treatment

  • G. A. Hide
  • G. R. Cayley


Potato tubers inoculated withPhoma exigua var.foveata were dipped or sprayed with fungicide immediately after wounding or after holding them at 5 or 15°C for up to 14 days. Thiabendazole and 2-aminobutane, either separately or combined, controlled gangrene when applied soon after wounding: on tubers with little inoculum, application in 2 litres t1 was better than in 400 ml t−1. When treatment was delayed, 2-aminobutane or the mixture was more effective than thiabendazole alone. Adsorption of thiabendazole onto soil increased with decreasing soil pH and the fungicide gave better control of disease on tubers carrying neutral than acid soil. Treating tubers with dichlorophen increased gangrene.

Additional key words

thiabendazole 2-aminobutane soil adsorption soil pH dichlorophen inoculum level 


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Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • G. A. Hide
    • 1
  • G. R. Cayley
    • 1
  1. 1.Wellcome Research LaboratoriesBerkhamstedUK

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