Scholarlink

<p>The prolonged and intensive application of insecticides has led to widespread resistance to most chemical insecticides in <i>Nilaparvata lugens</i> (Stål). Continuous monitoring of insecticide resistance in field populations is essential for improving insect pest management and establishing a scientific basis for rational control strategies. In this study, the resistance of <i>N</i>. <i>lugens</i> to buprofezin was evaluated in nine field populations from Hubei and Hunan provinces over six consecutive years using a rice seedling dipping method. All tested populations exhibited consistently high levels of resistance to buprofezin throughout this period, with resistance ratios (RR) ranging from 1426.67- to 9194.06-fold. The highest resistance was observed in the Jiangling (JL) population in 2023 (LC<sub>50</sub> = 735.53&#xa0;mg/L, RR = 9194.06-fold), while the GA population in the same year showed the lowest resistance (LC<sub>50</sub> = 114.97&#xa0;mg/L, RR = 1437.08-fold). These findings underscore the necessity of suspending buprofezin use for controlling <i>N</i>. <i>lugens</i>, and emphasize the need for sustained, long-term resistance monitoring.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Monitoring of buprofezin resistance in field populations of Nilaparvata lugens stål

  • 期刊论文

  • 发表日期：

    2026年7月10日

查看全文
  • Shuxiang Wang,
  • Shenglan Wen,
  • Yuxuan Chen,
  • Liyi Liu,
  • Dan Zhang,
  • Xiangying Zhao,
  • Feiyue Ren,
  • Xiaolei Zhang,
  • Junkai Li

摘要

The prolonged and intensive application of insecticides has led to widespread resistance to most chemical insecticides in Nilaparvata lugens (Stål). Continuous monitoring of insecticide resistance in field populations is essential for improving insect pest management and establishing a scientific basis for rational control strategies. In this study, the resistance of N. lugens to buprofezin was evaluated in nine field populations from Hubei and Hunan provinces over six consecutive years using a rice seedling dipping method. All tested populations exhibited consistently high levels of resistance to buprofezin throughout this period, with resistance ratios (RR) ranging from 1426.67- to 9194.06-fold. The highest resistance was observed in the Jiangling (JL) population in 2023 (LC50 = 735.53 mg/L, RR = 9194.06-fold), while the GA population in the same year showed the lowest resistance (LC50 = 114.97 mg/L, RR = 1437.08-fold). These findings underscore the necessity of suspending buprofezin use for controlling N. lugens, and emphasize the need for sustained, long-term resistance monitoring.