On: 13 January 2020 In: Agriculture

How Eurofins is evaluating Delair drones and data management platform delair.ai for agricultural research

The Aerial Potato Disease Evaluation (APODE) project evaluated the accuracy, objectivity and traceability of Delair solution for potato blight assessment.

Providing sustainable solutions for global food security is a major challenge. With the world population estimated to grow to nearly 10 billion people by 2050, the demand for agricultural products will increase by up to 50%.

Weed, pest and disease control, as part of a wider Integrated Crop Management (ICM) is vital to help achieve sustainable food security – for families today and generations of the future. This is one of Eurofins Agroscience Services’ key missions; to support the agroscience industry by coming up with new effective and scalable solutions.

As part of the Eurofins Scientific Group, Eurofins Agroscience Services is a global research organization providing regulatory & technical support to the agrochemicals and biologicals manufacturers, breeders, animal health and agtech industries. The company offers the full portfolio of services required to screen and develop, register and steward new products for agriculture, including efficacy, safety field and laboratory studies, regulatory consultancy and project management.

In 2019, Eurofins Agroscience Services has conducted the Aerial Potato Disease Evaluation (APODE) European project together with Delair and GeoInspect, evaluating an agricultural drone solution to screen one of the most serious diseases of potatoes in the world: late blight (Phytophtora infestans). This project has received funding from the EU Horizon 2020 DIVA project.

The challenge for agriculture research

21 million hectares of potatoes are cultivated in the world and late blight pathogen is estimated to cost more than 1 billion euros per year in Europe, and 7 billion euros globally. Each year, European crop protection research companies are running thousands of trials on potato blight to evaluate new fungicides. The official disease evaluation method consists in estimating the plant foliar infected area at frequent intervals over the whole crop cycle. his method represents hundreds of days and researchers, and generates terabytes of data collected from visual field evaluations.

For agchem manufacturers, this data is key to elaborate and demonstrate new treatments as fungicide resistance has been reported in an increasing number of countries, and growers trying to control late blight and early blight are facing increasing difficulties.

Plant protection research companies such as Eurofins are therefore looking for new effective technologies to gain both time and accuracy in their experiments.

“Collecting large-scale, field-based plant data with sufficient accuracy and in a reproducible and objective manner, represents a real challenge in the plant science research, it can also be very labor intensive and costly, “ explains Emilie Guillard, Director of Innovation at Eurofins Agroscience Services in France.

As a global leader in plant protection research, Eurofins Agroscience services invests in collaborative projects to improve field testing methods and benefit from digital technologies. Delair drone solutions are already successfully used by breeders for phenotyping, as they standardize the data acquisition and provide full field traceability. Eurofins looked at transferring this technology to large scale crop protection experiments, such as their potato blight microplots platforms spread across Europe to evaluate new fungicide solutions.

An end-to-end visual data management solution

Eurofins has started to use Delair’s drone data management solutions during the summer of 2019 to automate and improve the quality of their field trial evaluations. They needed a complete, end-to-end solution including hardware and software to achieve their research goals: assess potato late blight evolution over three months, collect accurate and objective data, ensure traceability and compliance with EU guidelines, and improve team efficiency.

Once the decision was made to collaborate with Delair on this research project, the Eurofins teams went quickly through the adoption process and first results. After a three-day training in June 2019, Eurofins and GeoInspect pilots flew over 400 potato microplots in Ireland and France from July to September with the Delair UX11 Ag drone.

The Delair UX11 Ag was adapted to Eurofins data collection needs. Designed for BVLOS (beyond-visual-line-of-sight) flights, the system reduces the amount of time and money required to provide detailed surveys of large-scale agriculture operations. For these specific conditions – potato blight monitoring – the UAV is able to cover 50 ha (124 ac) per flight at 70m (230 ft), in less than one hour.

The drone was also appreciated for its ease-of-use: in less than 5 minutes, the flight’s parameters can be adjusted by the pilot according to meteorological conditions, plot’s characteristics or flight elevation. The whole experience is made easy thanks to the UAV’s Android mission planning and monitoring app, that includes a pre-flight checklist, no-fly zones, modern user interface, and in-flight data.

Of high interest for Eurofins was the embedded MicaSenseRedEdge MX camera camera, a fully integrated high-grade multispectral sensor to see at the plant level. The sensor generates plant health indexes and RGB (color) images and is calibrated for precise, repeatable measurements. Thanks to its PPK-as-you-go feature, it was also possible to precisely overlay the aerial maps for temporal data analysis, flight after flight.

In the end, Eurofins field agronomists were able to extract potato crop measurements at microplot level and compare fungicides responses between the different microplots. Eurofins got the data collected and processed in the delair.ai platform, with ag-dedicated algorithms to automatically generate online and sharable maps.

“ As disease had started spreading across our field sites, we were able to compare aerial imagery data to our potato blight assessment data and establish if the method precision and accuracy were equivalent to our standards”, explains Emilie Guillard.

Blight pressure differences between the microplots, based on RGB maps and NVDI maps on delair.ai

The results from the drone data

The APODE project data analysis is currently a work in progress at Eurofins and Delair, with already very interesting outcomes demonstrated by the solution.

Eurofins and Delair have started to check the data correlation between the technicians’ visual notations over the season and the drone data extracted from delair.ai. Using a combination of the multispectral bands (Red, Green, Blue, RedEdge and Near infrared), Eurofins and Delair demonstrated that it is possible to predict potato blight even before it becomes visible by human eyes, as shown in the graph below.

Comparison of drone data and visual data at 17 days of interval

In the end, the project has also started to demonstrate promising benefits in terms of field research conducted as drone data solutions enable  better data traceability, which is critical to ensure the regulatory compliance of Eurofins field studies.

delair.ai allows to simply build digital twins of the fields in the cloud, meaning that the complete drone imagery is saved which ensures full data traceability back to the field, even years later. The platform also gives live data access from anywhere, allowing collaboration between different teams and trial conducts adaptation when needed.

“The outcomes demonstrated in APODE with our partners Delair and GeoInspect open opportunities for Eurofins to develop new services for plant protection companies or seed breeders and could be applicable in the future to other potato production contexts and to other arable crops,” says Emilie Guillard as a conclusion.

The project final conclusions are expected in Q1 2020.