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Institut Sophia Agrobiotech

UMR INRA - Univ. Nice Sophia Antipolis - Cnrs

PhD Defense - Silène LARTIGUE

Wednesday 17 March 2021 - 15:00 - Visio ZOOM

PhD Defense
Silène LARTIGUE : "Phenotyping personality to improve biological control : Trichogramma evanescens as a case study."

Trichogramma are microscopic wasps that lay their eggs inside of crop-eating butterfly eggs. Trichogramma are widely used by farmers as an alternative to chemical pesticides to control crop-pests. In order to improve the use of Trichogramma, we aimed to determine whether it is possible to select personality traits in these wasps. The term “personality” refers to between individual differences in behaviour that are maintained through time and varying contexts. For example, some Trichogramma are consistently more explorative than others. We developed an experimental design to measure three types of personality: shyness, exploration and activity. We showed that there is a link between personality, fecundity, size and the ability of Trichogramma to move in a cornfield.

Jury : 





M. Jérome MOREAU 

Maître de conférences 

Universite de Bourgogne Franche-Comté (Dijon) 

Directeur de thèse



Université de Rennes 1 


M. Thierry HANCE 

Full professor 

Université catholique de Louvain 



Full professor 

Colorado State University 


Mme Lucia ZAPPALà 

Full professor 

University of Catania 


Mme Isabelle AMAT 

Maître de conférences 

Université Claude Bernard Lyon 1 


M. Thibaut MALAUSA 

Directeur de recherche 

INRAE - Institut Sophia Agrobiotech 

Co-directeur de thèse