Pest management science · 2026
Transforming agricultural waste into intelligent biopesticide delivery: soil-disintegrable tea saponin microcapsules for sustainable crop protection.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Liu Ying, Ding Yi, Xu Long, Wang Chao, Yao Huanhuan, Zhang Huili, Tang Xiujun, Liao Min, Cao Haiqun, Niu Junfan
Аннотация
BACKGROUND: In order to achieve intelligent and sustainable delivery of tea tree oil (TTO) for tea pest control, we developed a soil-disintegrable, pH-responsive microcapsule system (TMS) with an average particle size of 2.05 μm using 15.6% tea saponin as the shell precursor via interfacial polymerization.
RESULTS: Optimized TMS (1-2 μm) achieved 97.4% encapsulation efficiency. The system exhibited accelerated TTO release under acidic conditions (78.8% at pH 5.0), enabling targeted delivery to fungal infection sites. It demonstrated superior foliar adhesion and rainfastness (84.5% retention) compared to free TTO. Biological evaluations revealed potent dual bioactivity: antifungal efficacy against Colletotrichum camelliae [median effective concentration (EC50) = 0.87 mg mL-1] and Phyllosticta theaefolia (EC50 = 2.3 mg mL-1), alongside significant insecticidal activity against Ectropis obliqua larvae (90.0% mortality at 3 mg mL-1).
CONCLUSIONS: This work demonstrates substantial macroscopic disintegration and no apparent phytotoxicity, with the potential to reduce persistent microplastic accumulation, providing a potential strategy to improve its formulation and delivery while retaining its biological activity. © 2026 Society of Chemical Industry.
RESULTS: Optimized TMS (1-2 μm) achieved 97.4% encapsulation efficiency. The system exhibited accelerated TTO release under acidic conditions (78.8% at pH 5.0), enabling targeted delivery to fungal infection sites. It demonstrated superior foliar adhesion and rainfastness (84.5% retention) compared to free TTO. Biological evaluations revealed potent dual bioactivity: antifungal efficacy against Colletotrichum camelliae [median effective concentration (EC50) = 0.87 mg mL-1] and Phyllosticta theaefolia (EC50 = 2.3 mg mL-1), alongside significant insecticidal activity against Ectropis obliqua larvae (90.0% mortality at 3 mg mL-1).
CONCLUSIONS: This work demonstrates substantial macroscopic disintegration and no apparent phytotoxicity, with the potential to reduce persistent microplastic accumulation, providing a potential strategy to improve its formulation and delivery while retaining its biological activity. © 2026 Society of Chemical Industry.