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R249 Developing Effective Integrated Control of Black Dot

Publication Date: 
16 August 2011
Author/Contact :
Stuart Wale

Contractor :

Full Research Project Title: Developing effective integrated control measures for the control of black dot
Duration: January 2004 - March 2008

Aim: To understand aspects of the biology of the black dot pathogen, Colletotrichum coccodes, so that control measures can be effectively and practically integrated

The first three years of this project were jointly funded by AHDB Potatoes and SEERAD. The project was constructed in four inter-related parts:

  • laboratory studies to understand how initial inoculum on seed and in soil relates to final disease and thus disease risk
  • field trials to study the epidemiology of C. coccodes under a range of inputs and control measures
  • field monitoring to determine how disease develops in commercial crops
  • and post-harvest trials to identify the optimum way to handle stocks after harvest to reduce infection / disease development.

In April 2007, the AHDB Potatoes funded a one year extension to the project. The aim was to provide additional information needed for the interpretation of results from the PCR-based diagnostics assay. The researchers examined the effect of the timing of sample collection on the ability to detect black dot in soil and covered a wider range of varieties and soil types than previously studied.

Results from a previous project, which assessed the potential to predict black dot development on harvested tubers from disease levels in the growing crop, are provided under related publications below.

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