Eco-friendly essential oil-loaded coaxial electrospun fibers for sustainable control of Plutella xylostella

作者：Bin Yan, Rui Zhang, Yuze Zhang, Zheng Duan, Xinyi Lu, Xi Chen, Xueqiu Liu, Weiping Li, Shuang Guo, Haibin Yuan, Zhiqiang Cheng · 发表于：Industrial Crops and Products · 年份：2026 · DOI：10.1016/j.indcrop.2026.122817 · 被引用次数：1 · 研究领域：Insect Pest Control Strategies、Electrospun Nanofibers in Biomedical Applications、Polymer-Based Agricultural Enhancements

Plant essential oils are widely recognized for their insecticidal and repellent properties; however, their practical application in pest management is often constrained by poor stability and rapid volatilization. To address this limitation, we developed a sustained-release delivery system for Artemisia lavandulaefolia essential oil based on electrospinning technology. Chemical analysis identified 47 constituents in the essential oil, with 1,8-cineole as the dominant component (45.2 %). Three fabrication strategies—uniaxial electrospinning, uniaxial particle formation, and coaxial electrospinning—were systematically compared with respect to their sustained-release performance. Among them, coaxial electrospinning exhibited the most favorable release behavior, achieving a prolonged release period exceeding 42 days and showing excellent agreement with a first-order kinetic model (R² = 0.99). Bioassays demonstrated that the coaxial electrospun fiber membrane significantly disrupted key life-history traits of the target insect species, including a 26.9 % extension of larval development, a 52.8 % reduction in adult lifespan, a 50.0 % decrease in oviposition, and a 19.7 % reduction in fourth-instar body weight compared with the control. These results indicate pronounced adverse effects on insect growth and reproductive performance. Overall, this study presents an eco-friendly strategy for enhancing the persistence and biological efficacy of plant-derived insecticides. By integrating ...