摘要：Post-harvest pest control can rely on few approved pesticides and tools; hence, there is a rising interest in new sustainable, eco-friendly approaches. In this study, eight commercial essential oils (EOs) (anise <i>Pimpinella anisum</i>, artemisia <i>Artemisia vulgaris</i>, fennel <i>Foenicum vulgare</i>, garlic <i>Allium sativum</i>, lavender <i>Lavandula angustifolia</i>, mint <i>Mentha piperita</i>, rosemary <i>Rosmarinus officinalis</i>, and sage <i>Salvia officinalis</i>) were selected for their bioactivity and commercial availability, and then formulated in nano-emulsions. Repellency and acute toxicity of the developed nano-formulations were tested against a key stored product pest, <i>Tribolium confusum</i> (Coleoptera: Tenebrionidae). All the developed nano-emulsions presented optimal physical characteristics (droplet dimension = 95.01–144.30 nm; PDI = 0.146–0.248). All the formulations were repellent over time tested against adult beetles, in area preference bioassays. The best repellent was the anise EO-based formulation (RC<sub>50</sub> = 0.033 mg). Mortality values from cold aerosol trials showed that the majority of tested EOs caused immediate acute toxicity, and garlic EO nano-emulsion caused the highest mortality of <i>T. confusum</i> adults (LC<sub>50</sub> = 0.486 mg/L of air). EO-based nano-insecticides, used as cold aerosol and gel, are promising control methods against stored product pests, which can be integrated and combined with other sustainable biorational approaches.
