数字农科院2.0

Eco-friendly management of Bradysia odoriphaga in Allium tuberosum using a Warm-Water Drip Irrigation System (DIWW)

文献类型： 外文期刊

作者： Shi, Cai-hua;Hu, Jing-rong;Du, Tian-hua;Sang, Wen;Zhang, You-jun

作者机构：

关键词： Chive gnat;tolerance;eco-friendly technologies;high temperature;Chinese chive;integrated pest management (IPM);protected agriculture;thermal stress physiology

期刊名称： ENTOMOLOGIA GENERALIS

ISSN： 0171-8177

年卷期： 2026 年

页码：

收录情况： SCIE（2025版）

摘要： Bradysia odoriphaga Yang et Zhang (Diptera: Sciaridae) poses a grave threat to China's vegetable industry, with particular severity in Allium tuberosum (Asparagales: Alliaceae) cultivation. The indiscriminate use of toxic insecticides to control B. odoriphaga has raised pressing concerns regarding safety risks for humans and livestock. This study systematically evaluated the thermal tolerance of A. tuberosum roots and B. odoriphaga larvae or pupae across a gradient of water temperatures. Based on these finding, a novel 'drip irrigation system utilizing warm water' (DIWW) was developed as an innovative pest management solution. Results showed A. tuberosum roots exhibited robust tolerance to water temperatures below 50 degrees C, sustaining no observable growth impairment. However, exposure to 60 degrees C for more than 20 s caused complete root mortality. For B. odoriphaga larvae, complete mortality required 30 min at 40 degrees C, 30 min at 42 degrees C, 5 min at 45 degrees C, 20 s at 48 degrees C, and 10 s at 50 degrees C. Pupae demonstrated higher thermal resistance, with complete mortality achieved in 10 min at 45 degrees C, 1 min at 48 degrees C, and 20 s at 50 degrees C. Leveraging these critical disparities in thermal tolerance, the DIWW system was engineered with a 1.0-1.4 mm pipe orifice and plastic film coverage. By maintaining water temperatures between 42-50 degrees C during application, the system effectively eradicated B. odoriphaga populations while significantly enhancing A. tuberosum yield. This eco-friendly technology not only addresses the challenges of chemical pesticides overuse but also provides a transferable framework for integrated pest management in diverse crop systems.

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