In protected vegetable systems of the Mediterranean area, having bare soil for several weeks in late summer, post cash crop harvest, may induce soil degradation. Providing a soil cover in any period is key to preserve the soil's biological activity and maintain good agronomic conditions (e.g. soil structure) for the following crops.

Project RELACS – Improving inputs for organic farming. The greenhouse whitefly, Trialeurodes vaporariorum causes direct damage to plants by piercing their tissues, as well as indirect damage, by transmitting viruses. Mineral oils are usually applied to control the greenhouse whitefly but should be replaced with more sustainable solutions.