“Optimization of the insecticidal performance of entomopathogenic nematodes (NEPS) in the field”

Entomopathogenic nematodes (EPNs) account for a small share of the biocontrol market and are limited to a niche market. The current strategy consists of adding large quantities of exogenous EPNs to the soil, which is costly and not very effective. The aim of this project is to optimize the insecticidal efficacy of native EPNs as part of conservation-based biological control. The goal is to develop the use of EPNs and thereby reduce the use of chemical pesticides. Soil samples containing or not containing NEPs will be collected over the three years of the project in apple orchards in the Basse Durance Workshop Zone in order to determine their abundance, diversity, and pathogenicity on the codling moth (Cydia pomonella), a major pest of this crop. The aim is to identify the agricultural practices and landscapes that favor the presence of NEPs that are pathogenic to this pest.