Potato spindle tuber viroid

Potato spindle tuber viroid

Photo by Plant Protection Service Archive, Plant Protection Service, Bugwood.org

  • Primary hosts are tomato, potato and avocado
  • PSTVd symptoms can be confused with other virus and viroid infections
  • Mild strains show no or minor symptoms
  • Severe strains induce leaves to curl downwards and become spindly with a rough surface and darker colour
  • Tubers become small, spindly and elongated, and may have growth cracks
  • Spread can occur through seed, tubers or mechanical transmission

High priority pest of: Potatoes, Vegetables

Scientific name: Potato spindle tuber viroid (Pospiviroidae) (exotic strains)
EPPRD Category: 3
Life Form: Virus

Pest Documents

FS: fact sheet

CP: contingency plan

DP: diagnostic protocol