| 乔彩云1, 陈佳斌2, 王 芳2*, 张 蓉2*, 穆雨琦2, 刘 畅2, 李 元3.氟啶虫酰胺对枸杞田棉蚜和枸杞木虱的防效及其残留消解动态[J].植物保护,2026,(1):330-335. |
| 氟啶虫酰胺对枸杞田棉蚜和枸杞木虱的防效及其残留消解动态 |
| Field control efficacy of flonicamid on Aphis gossypii and Poratrioza sinica and its residue digestion dynamics |
| 投稿时间：2024-12-19 修订日期：2025-02-21 |
| DOI：10.16688/j.zwbh.2024665 |
| 中文关键词: 氟啶虫酰胺 棉蚜 枸杞木虱 室内毒力 田间防效 安全间隔期 |
| 英文关键词:flonicamid Aphis gossypii Poratrioza sinica indoor toxicity field efficacy safe interval period |
| 基金项目:2021年青年科技人才托举工程项目; 宁夏回族自治区农业科技自主创新资金“十四五”农业高质量发展和生态保护科技创新示范项目(NGSB-2021-10-04); 宁夏回族自治区重点研发计划(2025BBF01001) |
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| 中文摘要: |
| 为了明确氟啶虫酰胺对枸杞田间的棉蚜Aphis gossypii和枸杞木虱Poratrioza sinica的防治效果, 确定其在枸杞上的安全间隔期, 分别采用浸叶法、微量点滴法测定药剂对棉蚜和枸杞木虱的室内毒力, 茎叶喷雾法进行田间药效试验和残留消解动态试验。室内毒力结果表明, 氟啶虫酰胺对棉蚜和木虱的LC50分别为3.999、19.876 mg/L。田间防治试验结果表明, 药后14 d, 氟啶虫酰胺对枸杞蚜虫的防效为98.4%～99.6%, 对枸杞木虱的防效为91.7%～96.8%。残留消解动态结果表明, 药后7 d, 氟啶虫酰胺在枸杞干果中残留量为0.69～1.78 mg/kg, 低于最大残留限量3 mg/kg。综合各试验结果, 枸杞田氟啶虫酰胺防治棉蚜和木虱的推荐剂量分别为15.0～30.0 g/hm2和42.9～60.0 g/hm2, 应用安全间隔期为7 d。 |
| 英文摘要: |
| This study aimed to determine control effects of flonicamid on Aphis gossypii Glover and Poratrioza sinica Yang & Li in wolfberry, and determine its safe interval. The biological activities of the agent against A.gossypii and P.sinica were determined by leaf dipping and micro-drop methods in laboratory, and the field efficacy and safe interval period trials were carried out by foliar spray method. Laboratory bioassay showed that the LC50 values of flonicamid on A.gossypii and P. sinica were 3.999 and 19.876 mg/L, respectively. Field experiments demonstrated that after 14 days of treatment, the control efficacy of flonicamid against A.gossypii was 98.4%-99.6%, and that against P.sinica was 91.7%-96.8%. After 7 days of treatment, the residue of flonicamid in wolfberry fruit was 0.69-1.78 mg/kg, which was lower than the maximum residue limit of 3 mg/kg. In conclusion, the recommended dose of flonicamid for controlling of A.gossypii and P.sinica was 15.0-30.0 g/hm2 and 42.9-60.0 g/hm2, respectively, and the safety interval was 7 days. |
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