Conventional pest control based on the use of synthetic insecticides is very effective, however, this has important negative effects on the environment such as the loss of farmland biodiversity, especially in the group of invertebrates, including many beneficial organisms. Another key problem is the presence of insecticide residues in surface and groundwater or, potentially, in harvested products.

The research is published in Science Advanced. Enhancing biodiversity in cropping systems is suggested to promote ecosystem services, thereby reducing dependency on agronomic inputs while maintaining high crop yields. We assess the impact of several diversification practices in cropping systems on above- and belowground biodiversity and ecosystem services by reviewing 98 meta-analyses and performing a second-order meta-analysis based on 5160 original studies comprising 41,946 comparisons between diversified and simplified practices.