Control of the important leaf and root diseases of pansy and viola

This factsheet covers the main foliar and root diseases of pansy, including downy mildew, powdery mildew, Ramularia, Alternaria, black root rot, Pythium and Phytophthora.  Information is provided on:

  • Basic pathogen biology
  • Disease symptoms
  • Development and spread of the diseases
  • Cultural and chemical control measures

The information was updated in 2014.

Useful links

For more information on the various diseases download the Bedding and Pot Plant Crop Walker's Guide