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Master Thesis

Gestion de Nesidiocoris tenuis en protection biologique intégrée dans des cultures de tomates hors sol

Abstract : Nesiodocoris tenuis (Reuter) (Hemiptera : Miridae) is a major pest of tomatoes in southern France. Its phytophagous action reduces plant growth and induces floral abscissions affecting yield. The treatment against N. tenuis impact the beneficial insect Macrolophus pygmaeus Rambur (Hemiptera: Miridae) mainly used on tomatoes. This study aims to increase the biological knowledge of both mirids, to evaluate crop protection methods and finally to propose a protocol for managing N. tenuis in soil-less tomatoes crops. To achieve this goal, the protection strategy implemented by a farmer in the SUD-PACA region was evaluated for 3 years with monitoring of population as a part of the IMPULsE project. New methods using yellow dry glue panels as a mean of detection and mass trapping have also been tested. The results show that climatic factors and prey availability have a strong impact on the development of the two insects and on the strategy implemented. Using entomopathogenic nematodes presents good results for controlling these pest populations. Detection trapping has shown good potential as a decision support tool to assess the presence of the pest. The installation of mass trapping did not significantly reduce populations of N. tenuis.
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Master Thesis
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Submitted on : Friday, December 13, 2019 - 3:26:18 PM
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Fanny de Boisvilliers. Gestion de Nesidiocoris tenuis en protection biologique intégrée dans des cultures de tomates hors sol. Sciences du Vivant [q-bio]. 2019. ⟨dumas-02409755⟩

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