Cause Sugar beet curly top virus causes this disease and the virus is transmitted by the sugar beet leafhopper. In Oregon, the disease is found primarily in eastern Oregon but is also occurs in central Oregon and the Klamath Falls area. The disease essentially parallels the distribution of the sugar beet leafhopper.
Symptoms Plants from infected tubers emerge late and are extremely dwarfed. Leaves are malformed, usually strongly cupped up. Tubers are small or absent.
Cultural control
- Use certified seed potatoes.
- Rogue out dwarfed plants.