This dataset represents the raw data analyzed for the article titled "Associating cultivars or species with complementary traits is crucial for enhancing aphid control through bottom-up effects." submitted in Ecological Applications. The data was gathered from the Gallecs peri-urban agricultural area during the 2019-2020 and 2020-2021 seasons. It contains information of the number of aphids, mummies foliage-dwelling and ground-dweling predators counted during the two sampling seasons, the coverage of burclover and wheat yield.