Crop tolerance/resistance to both environmental stresses and pests is pivotal for agriculture system resilience to climatic changes, ensuring the transition to more sustainable practices, supporting the reduction of inputs such as pesticides and fertilizer treatments, improving efficient use of scarce natural resources (e.g. water) and overall sustaining yield. VOC are arising as an alphabet that is used by plants to communicate with friends and foes and that may be usefully employed as a main environment-friendly strategy of sustainable plant protection.