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Master Thesis

Étude de l'impact de la lumière sur les insectes ravageurs

Abstract : From previous observations growing rooms, the engineers of Arexhor PL noticed that under certain LED lighting conditions, some pests were severely restricted in their development. These observations were confirmed by experiments in 2019 and 2020. The results of these experiments show a thrips infestation rate divided by four sub-spectrum predominantly blue compared to a spectrum predominantly red on chrysanthemum. Thanks to new trials, the 2021 study made it possible to provide answers on the various mechanisms involved in limiting infestations thanks to blue, with the aim of being able to offer this method in production. The first mechanism involved is an indirect effect of activation of plant defenses by light, called the plant defense stimulator effect (SDP). Indeed, certain spectra could stimulate the production of plant defense molecules that harm insect pests. The second mechanism involved would be a direct scaring effect of insects at certain wavelengths.
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Master Thesis
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Submitted on : Friday, February 18, 2022 - 9:54:06 AM
Last modification on : Wednesday, April 6, 2022 - 4:08:08 PM
Long-term archiving on: : Thursday, May 19, 2022 - 6:28:28 PM


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  • HAL Id : dumas-03579431, version 1



Fanny Ublet. Étude de l'impact de la lumière sur les insectes ravageurs. Sciences du Vivant [q-bio]. 2021. ⟨dumas-03579431⟩



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