Journal
MOLECULES
Volume 26, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/molecules26061812
Keywords
botanical-based insecticide; cereals; green grain protectant; essential oil nanoformulation; stored-product beetles; Tenebrionidae
Funding
- Agricultural University of Athens [34.0401]
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An eco-friendly pest management tool based on Hazomalania voyronii essential oil was developed and evaluated, showing certain efficacy against Tribolium confusum, T. castaneum, and Tenebrio molitor as wheat protectants. The study highlights the potential of using H. voyronii essential oil for developing green nanoinsecticides against key stored-product pests.
Most insecticides commonly used in storage facilities are synthetic, an issue that generates concerns about food safety and public health. Therefore, the development of eco-friendly pest management tools is urgently needed. In the present study, a 6% (w/w) Hazomalania voyronii essential oil-based nanoemulsion (HvNE) was developed and evaluated for managing Tribolium confusum, T. castaneum, and Tenebrio molitor, as an eco-friendly wheat protectant. Larval and adult mortality was evaluated after 4, 8, and 16 h, and 1, 2, 3, 4, 5, 6, and 7 days, testing two HvNE concentrations (500 ppm and 1000 ppm). T. confusum and T. castaneum adults and T. molitor larvae were tolerant to both concentrations of the HvNE, reaching 13.0%, 18.7%, and 10.3% mortality, respectively, at 1000 ppm after 7 days of exposure. However, testing HvNE at 1000 ppm, the mortality of T. confusum and T. castaneum larvae and T. molitor adults 7 days post-exposure reached 92.1%, 97.4%, and 100.0%, respectively. Overall, the HvNE can be considered as an effective adulticide or larvicide, depending on the target species. Our results highlight the potential of H. voyronii essential oil for developing green nanoinsecticides to be used in real-world conditions against key stored-product pests.
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