Insect Monitoring Service

  • Each year insects cause significant damage to crops through virus transmission or feeding damage.
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Insect Monitoring Service

Understanding the risks to your crops allows you to make informed decisions on when to treat your crops and to be more targeted with your pest management. Fera's Insect Monitoring Service helps potato, salad, carrot and winter oil seed rape growers to increase yield whilst reducing costs.

Our Insect Monitoring Service can be used by seed potato, carrot, salad and winter oil seed rape growers across the UK to mitigate risks with a more targeted approach to pest management.

Our Services
  • Save time and money with more targeted pesticide applications, increasing yield and quality.
  • Understand when your crops are at risk allowing you to make informed decisions on spray timing.
  • Demonstrate to your customers a commitment to quality management practices and your environmental responsibility.
  • Providing you with the information you need to assess virus transmission risk specifically for your field.

"The main advantage is the speed of turnaround of samples. I sent in samples in the morning and had my results by 12 pm. The aphid monitoring service allows us to minimise applications of aphicide and target application timing as specifically as is possible".

Roger Hobson

Testimonial Background

Insect Monitoring Services

Each year insects cause significant damage to crops through virus transmission or feeding damage. Understanding the risks to your crops allows you to make informed decisions on when to treat your crops and to be more targeted with your pest management. Fera's Insect Monitoring Service helps potato, salad, carrot and winter oil seed rape growers to increase yield whilst reducing costs.

Aphid Monitoring

The Aphid Monitoring service provides information specifically for your field to assess the risk of virus transmission, enabling better targeting of aphicide applications and other crop management interventions.

Insect monitoring provides you with the information you need to assess the risk of virus transmission specifically for your field. You can use this information in a number of ways to help you to reduce virus transmission and increase the value of your crop:

Money & time efficiency

Reduce and better target aphicide applications saving you money and time.

Effective management

Demonstrate good management practices helping you meet your customers' needs.

Crop preservations

Optimally time haulm destruction to preserve the value of your crop.

Profit maximisation

Assess the potential of home-saved seed potatoes and maximise profit the following year.

Strategic inputs

Fast results for targeted inputs.

Providing necessary equipment

We send you all the equipment that is needed, including water trap, sample pots and return envelopes. It takes just a few minutes to collect the sample. Your results, including a cumulative risk index, are sent to you by email or fax - your choice. You will receive your results the same day we receive your sample. Costs per site are around £280 for a ten week growing season.

UK & European successes

Seed potato growers, carrot growers and salad growers in the UK and Europe are benefiting from our service year after year by making decisions based on results for their own fields.

Access to the national yellow water trap programme

We also provide the national yellow water trap aphid monitoring programme in seed potatoes for AHDB Potatoes. You can find more information via their Online Toolbox.

More Information

Many species of aphid move between different host plants, migrating into crops at various times of year, with some aphid species able to transmit viruses better than others.

Download the Factsheet


Are your carrots at risk from virus damage?

Root symptoms such as kippering, black spotting and internal browning can all be signs of virus damage transmitted by aphids.

Fera can identify which aphids are in your crop to help you understand the virus risk.

Salad Crops

Salad growers in the UK face challenges from damage caused to their crops from the transmission of viruses from aphids and also from insect feeding damage. There is also additional risk of reputational damage to growers if the final product is found to contain insects. These challenges are having a significant impact across the industry leading to AHDB including the control of insect pests as one of the priority areas in their Leafy Salads Strategy.

Aphid transmitted viruses and feeding damage have a significant impact on the industry. Insects found in the final product can lead to reputation damage as customer demand perfection from purchased produce.

Fera's Insect Monitoring Service can identify the species of aphids present in crops highlighting to growers which viruses their crops are at risk from. They also highlight when further visual inspections are required to identify infestations and prevent reputational damage.

Oil Seed Rape

Each year up to 76% of the OSR crop is affected by cabbage stem flea beetle damage. The crop is most vulnerable to adult CSFB damage at the early stages of emergence as the beetles can feed on and destroy the growing point of the plant.

Crops drilled into dry soil conditions can cause the newly drilled crop to emerge slower and thus be more susceptible to crop damage from this pest. If the damage is severe, the seedlings can be affected even before they emerge. The overall effects cause stunting of the plant, poor plant vigour and in some cases total plant loss.

There is some confirmation of pyrethroid resistant CSFB populations now being present in the UK. Monitoring must now be a key component in Integrated Pest Management for UK growers of oilseeds.

Potato Crops

Potato Viruses Y and A (PVY and PVA) can seriously impact on potato production as even low levels can downgrade seed, which can cost the potato industry millions annually. About 40 aphid species transmit PVY and PVA with varying efficiency, and so it is important to know which species of aphid are in your fields so that you can assess if your crop is at risk from virus spread.

Monitoring also help you assess the risk of spread of PVY, and you can take this into account when considering the best time to burn down your crop, maximising your yield without risking the virus health of the seed. Gathering information on the potential quality of home saved seed gives you the opportunity to save the expense involved in buying-in classified seed potatoes.

Fera's Insect Monitoring Service uses yellow water traps to attract aphids which you then send to us for analysis, allowing us to tell you which species are present in the field and if your potato crop is at risk.

We also provide the national yellow water trap aphid monitoring programme for the Potato Council.

Why choose Fera?

  • The UK's largest Plant Clinic

    We are the UK's largest Plant Clinic handling in excess of 40,000 samples a year, offering the most comprehensive range of testing services for all sectors throughout the supply chain.

  • State of the art approaches

    We use a combination of state of the art LC-MS/MS triple quadrupole instruments; radiochemistry and test item application techniques to ensure that experimental studies generate relevant and valid outputs.
  • Decades of experience

    More than 100 years experience of delivering pest and disease identification services to a wide range of commercial growers and Government departments, both in the UK and overseas.

  • Immense capabilities

    We have the capacity to deliver with 4km of lab benching and 350 scientists analysing over 100,000 samples per year.

Why choose Fera?


The CropMonitor website provides information sourced from monitoring sites located across the country, reporting up-to-date measurements of crop pest and disease activity in arable crops throughout England.

Our CropMonitor Service

On-Site Diagnostics

The market leader for on-site plant disease testing, Pocket Diagnostic® tests are easy to use and give rapid identification of fungi, bacteria and viruses causing disease in plants. Pocket Diagnostic® tests support growers, advisors and plant health inspectors in making the right decisions about disease management.

The kits put the control back in the hands of the growers for improved disease management:
  • Give technical advisors greater certainty over advice
  • Save time and money for clients
  • Reduce resource wastage on unnecessary laboratory diagnoses

Pocket Diagnostic® kits are used around the world by specialists demanding reliability, speed and above all, on-site answers.

The Pocket Diagnostic® range of tests is owned and produced by Forsite Diagnostics Ltd in the UK.
How to order

For all enquiries and orders from the USA, please email

Invertebrate Pests & Novel Control

Our world-leading research provides practical solutions to the key pest challenges facing the agriculture, horticulture and forestry industries. Our expertise can assist you from early stage pre-commercialisation research, through the preparation of registration dossiers, to product stewardship. Our unique selling point stems from our interdisciplinary approaches and access to specialist facilities that ensure that our customers achieve the required solutions.

Major customers include Defra, Levy bodies, other government departments and the European Commission. We also undertake bespoke studies and services for commercial customers..

Examples of our services

Development of novel control methods for invertebrate pests: Research and development into novel pesticide targets and delivery systems, including hormones and receptors, parasitic wasp venoms, enhanced biological control by immune suppression, modifying reproductive behaviour, fusion proteins for enhanced oral uptake, novel toxins and RNA-interference (RNAi).

Development and assessment of new chemical and biological pesticides: Efficacy evaluation and development of delivery systems for insecticides, acaricides, molluscicides and adjuvants, to provide advice both for further product research and development and registration requirements.

Development of integrated pest management strategies for UK, European and invasive pest species: Integrated pest management (IPM) strategies against both indigenous and non-indigenous pests of agriculture, horticulture, tree and bee health importance, including improved monitoring, seasonal monitoring, biopesticides, evaluation of non-chemical control techniques, natural enemies and ecosystem management.

Mite services and nuisance insects: Research and development, commercial monitoring services and strategic advice covering a range of mite-borne insect nuisance problems, including storage and allergenic mites of food processing, stored products, animal feed stocks and habitation. Also includes nuisance insects in relation to environmental legislation and research and development into parasitic mite disease of sheep and cattle.

Biology and Behaviour: Understanding the biology and behaviour of key invertebrate pest species to advise policy and control strategies Ecotoxicology and environmental fate studies: Fera has extensive experience in understanding the environmental movement of pesticides and the assessment of aquatic, terrestrial and bee ecotoxicology. Operator and by-stander exposure.

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