Diplodia black storage rot

Is this a Minor Pest?
Minor Pest Title

Diplodia black storage rot (Botryodiplodia theobromae (Diplodia tubericola))

Minor Pest Description

The disease is caused by the fungus Botryodiplodia theobromae (Diplodia tubericola). It affects sweet potatoes in storage. The inner part of the infected edible root becomes black and brittle. Many tiny black fungal bodies (pycnidia) form just below the sweet potato skin giving the root a pimply appearance. Infection occurs through broken ends and abrasions on storage roots. Wet conditions favour disease spread and development.

Minor Pest What to do.
  • Use disease-free sprouts.
  • Harvest roots carefully to minimise injuries.
  • Do not store injured or wounded roots.
  • Practise good storage hygiene and management.
  • Ensure good ventilation in the store.
Minor Pest Position
Minor Pest Firstcontent
Pest Type
Host Plants
Sweet potato