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Master Thesis

Évaluation des méthodes de lutte alternative contre Drosophila suzukii en fraisiculture

Abstract : The Asian dipteran, Drosophila suzukii, is a pest first detected in Europe about ten years ago. It is now present in most European countries. The short duration of its reproductive cycle, its mobility and its many possible hosts make it a pest with a very high potential for harm. Since its official detection in France in 2010, the economic importance of its damage has led to the launch of many projects to address the problems of producers.The aim of this project is to increase knowledge about this fly and also to find effective solutions to protect strawberry crops from it. Initially, the population movements of Drosophila suzukii within the farms were characterized in order to identify refuge areas and thus be able to detect early thefts of this pest. In a second step, the installation of an insect-proof net was tested: it is this method that presents the most interesting results. On the other hand, chemical control only offers a short protection period of 4 to 7 days. Varietal sensitivity was studied and the importance of prophylactic measures was demonstrated. Finally, the study of combinations of techniques was very interesting, in this context, service plants did not have the effect expected, unlike the auxiliary Trichopria drosophilae, which seems to have potential for the management of this pest.
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Master Thesis
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Loïc Larroche. Évaluation des méthodes de lutte alternative contre Drosophila suzukii en fraisiculture. Sciences du Vivant [q-bio]. 2019. ⟨dumas-02335730⟩

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