I worked on a project with my first post bachelor's degree on ecology, agricultural practices, rural layout. I worked on an agricultural landscape in Brittany. Firstly, I selected parcels and i called farmers to explain my project. Secondly, I went to that plot to install insect traps (Barber pot, emergence tent, yellow traps). I dropted off this traps during 15 days, three times (three periods). Thirdly, I pooled data and I studied them on a statistical software and a cartography software. I found that intensive agriculture make damage on biodiversity in comparison to organic agriculture. To finish, I organized a meeting with farmers, their neighbors and my techers to explain results. I suggested to replant hedges perpendicularly to the hill to stop pesticide flow and create a refuge for insects and birds who can control bad insects like aphids or caterpillars.