Locusts are farmed as a protein source for human consumption and animal feed, raising welfare questions about rearing conditions, handling, and humane killing methods.
Whether locusts can suffer in a morally relevant sense remains scientifically uncertain, but the precautionary principle argues for implementing welfare improvements where feasible and low-cost. Thermal killing methods (freezing then roasting) may be preferable to methods that cause prolonged distress if locusts do have some form of negative experience. Rearing conditions that avoid chronic crowding stress and provide species-appropriate temperature and humidity serve production goals while also addressing potential welfare concerns. As the insect food industry scales, establishing and enforcing minimum standards now prevents entrenchment of poor practice.