Conventional crop protection with toxic pesticides has often led to issues such as pollution, faunal imbalance, and resistance of pests after adaptation to the pesticides. Deguine et al. review safer, agroecological techniques to control Cucurbitaceae flies, a worldwide pest. Results show that farmers from the Reunion Island have reduced insecticide use with substantial cost savings using agroecological techniques. Such agroecological techniques are currently being extended to other countries of the Indian Ocean.