| 李维政1, 梁 赫1, 秦子昕1, 温雪梅1, 何翔宇1, 岳 磊1, 王冬梅2, 赵娜娜1, 路 伟1*.四氯虫酰胺与3种助剂混配对棉铃虫的防治效果[J].植物保护,2023,49(1):244-249. |
| 四氯虫酰胺与3种助剂混配对棉铃虫的防治效果 |
| The control efficacy of tetrachlorantraniliprole mixed with three adjuvants against Helicoverpa armigera |
| 投稿时间：2022-05-20 修订日期：2022-06-24 |
| DOI：10.16688/j.zwbh.2022293 |
| 中文关键词: 四氯虫酰胺 助剂 棉铃虫 药效评价 毒力测定 |
| 英文关键词:tetrachlorantraniliprole adjuvant Helicoverpa armigera efficacy evaluation toxicity determination |
| 基金项目:国家重点研发计划项目（2017YFD0201903）；国家自然科学基金（31660520）；新疆农业科学院科技创新重点培育专项（xjkcpy-202004） |
| 作者 | 单位 | E-mail | | 李维政1, 梁 赫1, 秦子昕1, 温雪梅1, 何翔宇1, 岳 磊1, 王冬梅2, 赵娜娜1, 路 伟1* | 1. 新疆农业大学农学院, 乌鲁木齐 830052
2. 新疆农业科学院植物保护研究所, 乌鲁木齐 830091 | teerakon@sina.com |
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| 中文摘要: |
| 棉铃虫是为害棉花的主要害虫, 给棉花生长造成严重影响。为筛选出四氯虫酰胺防治棉铃虫的最佳浓度和最适助剂, 本文以四氯虫酰胺作为试验药剂, 氯虫苯甲酰胺为对照药剂, 青皮橘油、Silwet 408、甲基化植物油为农药助剂, 采用人工饲料混药法进行室内毒力测定, 并进行田间药效试验。室内毒力测定结果表明, 四氯虫酰胺对棉铃虫3龄幼虫的72 h LC50为0.061 μg/mL, 低于氯虫苯甲酰胺; 四氯虫酰胺减量30%后与青皮橘油、Silwet 408、甲基化植物油混配能够起到明显的增效作用, 增效比分别为1.91、1.33、1.13。田间药效试验结果显示, 在药后7 d内, 10%四氯虫酰胺悬浮剂在推荐剂量下对棉铃虫的防效为64.84%~85.53%, 与20%氯虫苯甲酰胺悬浮剂推荐剂量相当, 10%四氯虫酰胺悬浮剂+青皮橘油的防效为86.30%~95.56%, 表现出较好的速效性, 且增效作用优于其他组合。由此建议使用四氯虫酰胺防治棉铃虫时, 在推荐用药量基础上减量30%后再与青皮橘油混配进行防治, 能够实现农药减施增效的目的。 |
| 英文摘要: |
| Helicoverpa armigera (Hübner) is the main pest that damages cotton, which has a serious impact on cotton growth. In order to screen out the best concentration and the most suitable adjuvant for tetrachlorantraniliprole for controlling H. armigera, tetrachlorantraniliprole was used as the test agent, chlorantraniliprole was used as the control agent, and GPOO, Silwet 408 and MVO were used as synergists. The indoor toxicity test was performed by using artificial diet mixture method, and the field efficacy was tested. The results of indoor toxicity test showed that the LC50 value of tetrachlorantraniliprole to the 3rd-instar H. armigera were 0.061 μg/mL after treatment for 72 h, which was lower than that of chlorantraniliprole. After reduction of tetrachlorantraniliprole by 30%, an obvious synergistic effect appeared when it was mixed with GPOO, Silwet 408, and MVO, and the synergistic ratios were 1.91, 1.33, and 1.13, respectively. The results of field efficacy test showed that, within 7 days after treatment, the control efficacy of tetrachlorantraniliprole 10% SC was between 64.84% and 85.53%, which was equivalent to that of chlorantraniliprole 20% SC at the recommended dose. The control efficacy of tetrachlorantraniliprole 10% SC + GPOO was between 86.30% and 95.56%, showing a good quick effect, and the synergistic effect was better than other combinations. Therefore, it is suggested that, when using tetrachlorantraniliprole to control H. armigera, reducing the dosage by 30% on the basis of the recommended dosage and then mixing it with GPOO can achieve the purpose of reducing pesticide use and increasing efficiency. |
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