Spraing is the term given to a range of internal and external symptoms in potato tuber flesh consisting of brown, necrotic rings, arcs and flecks.
Symptoms can be confused with physiological problems, such as internal rust spot. Symptoms may not be seen at harvest but can develop in store. Chemical control is of limited use – ensuring disease free seed and knowledge of presence of vector and inoculum presence in field is essential to disease management. Planting diseased tubers in clean land could be a source of further spread of virus inoculum
Visual examinations can be highly subjective and inaccurate due to the similarities with a range of other potato viruses, laboratory testing is advised.
Spraing is the term given to a range of internal and external symptoms in potato tuber flesh consisting of brown, necrotic rings, arcs and flecks. Two viruses can cause these symptoms, Potato mop-top virus (PMTV) and Tobacco rattle virus (TRV).Download the Factsheet
Standard Turnaround Time
|10 working days|
Copyright © 2018 Fera Science Limited (“Fera”). All rights reserved.
Registered Office: 30 Berners Street, London, W1T 3LR. Registered in England & Wales, No 9413107. Fera is a joint venture company of Capita Plc, 30 Berners Street, London, W1T 3LR. Registered in England and Wales No 02081330. VAT Registration ID: GB 618184140
For further information about how Fera uses any personal data collected from you, please see our Privacy Notice at www.fera.co.uk/privacy-policy.