Capture the vine growth to better renew copper treatments

L

‘Motive team (for Texture Images Volume Models) of the Bordeaux IMS Laboratory (Integration of the material into the CNRS system) has developed a connected growth sensor: the vinelapse. Moreover, The UMT Seven (Mixed Technological Unit Health of Viticultural Ecosystems Economous in inputs) uses this sensor to measure the. Similarly, dynamics of vine growth in order to better reason the renewal of contact products. For example, As part of the efficuival program supported by the Mildiou Plan capture vine growth better renew of the Interprofessional Council of Bordeaux wine (CIVB). However, the French Institute of Vigne and Wine (IFV) installed three in early March: one in Villenave d’Ornon, the other in Blanquefort and the third in the Cognac vineyard in order to experience their functioning and their reliability and proof of concept.

&#13. Nevertheless, « From the discharge to the fall of the leaves, every night, the sensor photographs the CEP located in front of it. The goal of the device opens at 2 a.m. and sends a large flash on the vine. He takes a color photo and an infrared photo. The images go back to a server thanks to the 4 G. Thanks to these images. we can calculate the NDVI index (vegetation index by standardized difference), the leaf surface index and estimate the age of the leaves. The idea is to establish a daily growth index. to use this capture vine growth better renew indicator to better reason the renewal of copper -based treatments used against mildew. The tool could be used directly by winegrowers. But it could also be deployed to supply plants from plants to plants (BSV) via an online visualization interface (Ecophyto Valorice project). today these only indicate the phenological stages observed from week to week. With the growth sensors. the data on the growth speed would therefore be much more precise “, Details Léo Gallot, student in Bordeaux Sciences Agro and alternating at IFV who presented the tool on July 17 during the” Fluo Guinguette “evening organized by the Vinopôle at Château Dillon (property of the Viticultural High School in Blanquefort). By discovering the images of the growth thanks to a video. the technicians and winegrowers present “ confirmed that the tool was interesting and that it had highlighted at the start of the season the strong dynamic of growth capture vine growth better renew observed from May 4 to 18 “Reports Léo Gallot.

The tool is therefore promising but is still under development. Scientists still want to improve its autonomy before making it operational. At the end of the year. the project partners plan to set up a collaborative project to multiply sensors and analyzes via various partnerships. Case to follow.