Mildiou des tomates : ce que la science dit vraiment

Last summer, mildew devastated many of our crops, whether in Belgium or in the north of France. It seemed interesting to us to seek to understand this enemy in a Cartesian way and thus cut short beliefs and misinformation on the subject. We went to meet Professor Sébastien Massart who is a plant pathologist at the University of Liège - Gembloux Agro Bio-Tech. It explains to us from a scientific point of view the history of Mildew, its functioning, the research on its subject and the means of combating and preventing this scourge. 00:00 Introduction 00:17 Presentation of the faculty of Gembloux Agro-Bio Tech and Professor Sébastien Massart 01:06 Mildew what is it? 01:40 Symptoms of late blight 02:14 Mildew, where does it come from? 02:57 How did it arrive in our regions? The famines it caused. 04:01 Learning to live with mildew. 04:29 Arrival of the "A2" variant, sexual reproduction, greater genetic diversity. 05:53 The biology of downy mildew its life cycle and spread. 09:11 Season 2020 vs 2021. 09:53 Means of control and prevention with respect to the life cycle of downy mildew. 10:32 Ideal placement of tomato plants to guard against mildew. 11:45 Choice of varieties at sowing time. 12:02 "Vertical" / "Qualitative" resistances thanks to resistance genes, hybrid plants. 13:15 Selections by forced pollination 14:01 Mention of species selection work at the Horticultural Center of the faculty. 14:25 Precautions during the season. 15:00 Recommended actions if the outbreak is confirmed. 16:29 Preventive and curative treatments. 18:50 Decoctions: Nettle manure. 20:42 Decoctions: Garlic, Bicarbonates, etc. 21:58 Closing ----- Would you like to study at the University of Liège - Gembloux bio-Tech and thus train in life sciences and biological engineering? All the information is here: https://www.gembloux.uliege.be Many thanks to the faculty and to Sébastien Massart for his welcome.