Know more

About cookies

What is a "cookie"?

A "cookie" is a piece of information, usually small and identified by a name, which may be sent to your browser by a website you are visiting. Your web browser will store it for a period of time, and send it back to the web server each time you log on again.

Different types of cookies are placed on the sites:

  • Cookies strictly necessary for the proper functioning of the site
  • Cookies deposited by third party sites to improve the interactivity of the site, to collect statistics

Learn more about cookies and how they work

The different types of cookies used on this site

Cookies strictly necessary for the site to function

These cookies allow the main services of the site to function optimally. You can technically block them using your browser settings but your experience on the site may be degraded.

Furthermore, you have the possibility of opposing the use of audience measurement tracers strictly necessary for the functioning and current administration of the website in the cookie management window accessible via the link located in the footer of the site.

Technical cookies

Name of the cookie


Shelf life

CAS and PHP session cookies

Login credentials, session security



Saving your cookie consent choices

12 months

Audience measurement cookies (AT Internet)

Name of the cookie


Shelf life


Trace the visitor's route in order to establish visit statistics.

13 months


Store the anonymous ID of the visitor who starts the first time he visits the site

13 months


Identify the numbers (unique identifiers of a site) seen by the visitor and store the visitor's identifiers.

13 months

About the AT Internet audience measurement tool :

AT Internet's audience measurement tool Analytics is deployed on this site in order to obtain information on visitors' navigation and to improve its use.

The French data protection authority (CNIL) has granted an exemption to AT Internet's Web Analytics cookie. This tool is thus exempt from the collection of the Internet user's consent with regard to the deposit of analytics cookies. However, you can refuse the deposit of these cookies via the cookie management panel.

Good to know:

  • The data collected are not cross-checked with other processing operations
  • The deposited cookie is only used to produce anonymous statistics
  • The cookie does not allow the user's navigation on other sites to be tracked.

Third party cookies to improve the interactivity of the site

This site relies on certain services provided by third parties which allow :

  • to offer interactive content;
  • improve usability and facilitate the sharing of content on social networks;
  • view videos and animated presentations directly on our website;
  • protect form entries from robots;
  • monitor the performance of the site.

These third parties will collect and use your browsing data for their own purposes.

How to accept or reject cookies

When you start browsing an eZpublish site, the appearance of the "cookies" banner allows you to accept or refuse all the cookies we use. This banner will be displayed as long as you have not made a choice, even if you are browsing on another page of the site.

You can change your choices at any time by clicking on the "Cookie Management" link.

You can manage these cookies in your browser. Here are the procedures to follow: Firefox; Chrome; Explorer; Safari; Opera

For more information about the cookies we use, you can contact INRAE's Data Protection Officer by email at or by post at :


24, chemin de Borde Rouge -Auzeville - CS52627 31326 Castanet Tolosan cedex - France

Last update: May 2021

Menu Logo Principal Plant pathology unit - INRA AVIGNON

Pathologie vegetale

Zone de texte éditable et éditée et rééditée

Technology transfer

Sensor and sensing system of a liquid on a leaf

Patent : FR2753272

Read the patent on the National Institute of Industrial Property website (Institut National de la Propriété Industrielle; only french version available)

Microdochium dimerum, biological control agent for the protection of greenhouse tomatoes against Botrytis cinerea

Studies in the mycology laboratory of our plant pathology research unit had shown the efficiency of a strain of the fungus Microdochium dimerum in protecting pruning wounds on tomato plants against gray mold caused by Botrytis cinerea under greenhouses. INRA has granted the company Agrauxine an operating license for the Microdochium dimerum strain so that it can develop and market an effective product, AntiBot, that will be accessible to the largest number of producers.

PLATANOR® Vallis clausa, a plane tree variety resistant to canker stain

Control measures for the disease have focused on genetic breeding of plane trees to produce trees resistant to canker stain. Sources of resistance have been identified in the USA. Their introduction resulted in the selection of the resistant plane variety Platanor Vallis Clausa (bred jointly by INRA / Nurseries ROUY Imbert) by controlled crosses between Platanus occidentalis resistant to canker stain and Platanus orientalis adapted to our climate. This new variety presents all the ornamental characteristics of the common plane .The Rouy-Imbert Nurseries holds exclusive worldwide rights to varieties in the PLATANOR® range.

Biological materials

As part of its research activities, each laboratory unit managed (maintenance and enrichment) collections of bacteria (Pseudomonas syringae), fungi (Botrytis cinerea) and viruses. Within each collection, there are "reference strains", defined by biological properties and molecularly characterized.

Diagnostic tools for plant pathogens

Knowledge of viruses has conducted the virology laboratory to develop 15 diagnostic kits to detect viruses of the major vegetable crops. A grant license for commercial applications was signed with the company SEDIAG which sell these kits since almost 20 years. Two new kits were commercialized since 2006 (detection of the Beet pseudo yellows virus (BPYV) and Cucurbit aphid borne yellows virus (CABYV)). More recently, new kits were performed to detect the Cucurbit yellow stunting disorder virus (CYSDV) and the Cucumber vein yellowing virus (CVYV). Sold by the SEDIAG compagny, they are the only available kits to detect these two viruses.

  • ELISA assays used for routine diagnosis of two viruses, the genus Crinivirus, Tomato chlorosis virus (ToCV) and Tomato infectious chlorosis virus (TICV)

These two viruses have emerged recently in tomato crops under shelter in southern France. Only one molecular test targeting a protein highly conserved in the genus [protein homologous to a heat shock protein (HSP)], was available for these viruses. Researchers at the virology team have established the sequence of a fragment of the 4kb ARN2 of each virus, providing access to one of their capsid protein (CP).

  • Test for simultaneous TICV and ToCV by RT-PCR in one step

Jacquemond, M., Verdin, E., Dalmon, A., Guilbaud, L., and Gognalons, P. 2009. Serological and molecular detection of tomato chlorosis virus and tomato infectious chlorosis virus in tomato. Plant Pathology 58: 210-220.

  • Quantitative and performance test (real-time PCR) for detection of of the stolbur phytoplasma, transmitted by leafhoppers Hyalesthes obsoletus

This phytoplasma is responsible for the decline of lavender for several decades, a disease whose a increasing extent, particularly since 2003. This diagnostic test allows to:
- improve the certification of healthy plants,
- understand better the etiology and epidemiology of dying
- to characterize the phenomenon of tolerance observed in some varieties of Lavandula spp.