Rapid direct tuber test for virus

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  • Telephone

We will use the email address provided above to contact you about this service within 2 working days

Rapid direct tuber test for virus
  • Method Used
    Real-Time PCR
  • Standard Turnaround Time
    5 working days

Viruses are some of the most economically damaging diseases affecting potatoes and are a major reason for crops failing seed certification. These viruses are damaging in both seed and ware crops causing yield loss and quality issues (e.g. fry colour).

Each additional virus/strain adds £75 (excl. VAT) to the total cost.

Understanding what virus loading is in the seed to be planted is critical in managing crop outcomes.

As these viruses are predominantly aphid transmitted, the use of Fera's insect monitoring service will help understand the risks and provide vital information for the consideration of treatments.


Potato virus Y is transmitted by aphids and is responsible for significant yield loss across a range of potato varieties. The severity of the yield loss is directly attributed to the strain, timing, and resistance of the potato.


Potato leafroll virus is transmitted by aphids, and can cause vast swathes of damage, as well as having the ability to spread over relatively large distances in a short time-scale. Symptoms include leaf curling and necrosis, which dramatically affects yield quality and quantity.


Potato virus A is also aphid-transmitted and can cause significant symptoms resulting in yield reduction in susceptible varieties, especially when in combination with other plant viruses.


With minimal visual symptoms this virus is difficult to detect. When infected, potato plants are immediately more susceptible to disease, especially when in combination with other plant viruses. PVV is transmitted by aphids, which can result in large scale infection if not managed correctly.


Although some potato varieties are resistant to PVX, when in combination with a range of other viruses severe symptoms can be found. PVX may be extremely prevalent due to the mild or non-existent symptoms associated with infected potatoes.

Submitting your Sample

When submitting your sample please follow the guidelines outlined within our sample shipping information.

The relevant signed sample submission form must be included (in a separate bag if sample is damp); failure to send a sample submission form may result in a delay of your sample being tested and make diagnosis more difficult. To help us process your samples in the most efficient way please fill in as much information as possible on the relevant form below. Please ensure you provide your email address, 'Your Ref', 'Purchase order no' and 'Name and Address for Invoice' in the sections where applicable.

Download the sample submission form here

More Information

Viruses are among the most economically important diseases of potato. Those transmitted by aphid vectors are the most prevalent and damaging to crops, accounting for almost 75% of potato virus disease intercepted.

Download the Factsheet



Method Used

Real-Time PCR



Minimum Sample Information

120 Tubers

Turnaround Time

5 working days

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