Email this article PREPARATION AND IN VITRO TEST OF INSECTICIDAL ACTIVITY OF NANO – BI AGAINST TETRANYCHUS SP.
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Received: 20/06/25 Revised: 14/11/25 Published: 18/11/25Authors
1. Do Van Cong, Institute of Materials Science- VAST2. Vu Thi Phuong Binh, Plant Protection Research Institute – VAST
3. Tran Ngoc Khanh, Plant Protection Research Institute – VAST
4. Vu Ngoc Thu Ha, School of Chemistry and Life Sciences- Hanoi University of Science and Technology
5. Nguyen Thi Bich Hong, TECH-VINA Joint Stock Company
6. Dao Thi Thanh Huyen, TNU - University of Agriculture and Forestry
7. Pham Khanh Linh, VNU University of Science – Vietnam National University, Hanoi
8. Ha Minh Thanh, Plant Protection Research Institute – VAST
9. Nguyen Thi Hoa, Vietnam Institute of Industrial Chemistry
10. Le Dang Quang
, Institute of Materials Science- VAST
Abstract
This study focuses on the development, formulation, and in vitro evaluation of the biological efficacy of NANO-BIa novel nanoemulsion system composed of neem oil and cinnamon essential oildesigned for the effective control of Tetranychus sp. on tomato (Solanum lycopersicum) plants. Fourier-transform infrared spectroscopy analysis revealed characteristic alterations in functional groups, confirming the successful formation of the emulsion. The nanoformulation exhibited an average particle size of approximately 206 nanometers and a zeta potential of -55.7 mV, indicating excellent colloidal stability and dispersion uniformity. In bioefficacy trials, NANO-BI significantly outperformed the conventional chemical pesticide Vineem 1500EC, achieving an outstanding mortality rate of 98.33 - 100% within just 1 to 3 days at a concentration of 0.50%. Moreover, it maintained a high level of effectivenessranging from 95% to 100%even at the lowest tested concentration of 0.125%. These promising results suggest that NANO-BI is not only highly effective and fast-acting against Tetranychus sp., but also represents a strong candidate for sustainable, eco-friendly pest management solutions in agriculture.
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DOI: https://doi.org/10.34238/tnu-jst.13091
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