2023/10/20 by Stéphanie Aviron, Matthieu Perraudin, Aviron, Stéphanie +7
Agricultural and Biological Sciences · #0 #Composition du paysage #Diversité de pratique #Hemiptera Insect Studies #Insect-Plant Interactions and Control #Landscape composition #Lutte biologique #Miridae #Natural pest regulation #Nematode management and characterization studies #Practices diversity #Régulation naturelle de ravageur
paper · doi:10.17180/tt9n-rr23
openalex created_date 2017/07/14 · openalex publication_date 2023/10/20 · openalex updated_date 2026/07/15
Enhancing insect pest control by their natural enemies is considered as a promising crop protection strategy in organic vegetable production systems. In Mediterranean areas, native natural enemies such as mirid bugs (Heteroptera: Miridae) settle spontaneously in protected vegetable crops and can play an important rolefor pest regulation, which remains however very heterogeneous from field to field and hardly predictable. The present study is part of the project REGABRI, which aims at identifying key factors of colonization of organic and conventional protected tomato crops by mirid bugs in Roussillon area. A first survey in 2010-2011 on 34 crops showed that mirids abundances in crops vary according to management practices and landscape features in the crops surroundings (100m to 200m). A second survey in 2012 made it possible to identify uncultivated or cultivated elements in the crops surroundings, that might enhance (source habitats) or on the contrary reduce (dilution and sink effects) tomato crops colonization by mirids. These results showed that a systemic approach, considering the field, the cropping systems as well as the landscape scale, is needed to optimize conservation biological control on protected vegetable systems.