 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
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High priority pest of: Potatoes
Scientific name: Potato spindle tuber viroid (Pospiviroidae)
EPPRD Category: 3
Life Form: Virus
Pest Documents
FS: fact sheet
CP: contingency plan
DP: diagnostic protocol
