| 李晓媚，李广升，JAVAID Wasim，汪岚峰，杜澄举，易 聪，刘 迪，毛 磊，梁梓豪，文 超，王 偲,2025,苯酚钠对台湾乳白蚁踪迹和聚集行为的影响及应用潜力[J].环境昆虫学报,(2):420-432 |
| 苯酚钠对台湾乳白蚁踪迹和聚集行为的影响及应用潜力 |
| Effect of sodium phenoxide on trail-following and aggregation behaviors of Formosan subterranean termites and its potential in termite control |
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| DOI： |
| 中文关键词: 苯酚衍生物 白蚁 引诱剂 踪迹行为 信息化合物 |
| 英文关键词:Phenol derivative termite attracant trail-following behavior semiochemical |
| 基金项目:广州市市场监督管理局科技项目（2024KJ56） |
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| 摘要点击次数: 10 |
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| 中文摘要: |
| 白蚁引诱剂能引起白蚁的踪迹和聚集行为，与杀虫剂搭配使用有望起到诱杀的作用，从而提高白蚁的防治效果。此前的研究表明苯酚及其衍生物对台湾乳白蚁Coptotermes formosanus具有踪迹活性，但这些非极性化合物具有易挥发、不溶于水的化学性质，不利其应用于白蚁防治。本研究假设极性化合物苯酚钠也对台湾乳白蚁具有踪迹和聚集活性，与杀虫剂吡虫啉联用时仍能引起白蚁的聚集行为。Y形路径试验表明0.1 μg/cm、1 μg/cm和10 μg/cm浓度的苯酚钠对台湾乳白蚁工蚁具有踪迹活性，但过低（0.01 μg/cm）和过高（100 μg/cm）浓度的苯酚钠不能引起白蚁的踪迹行为。此外，不同品级的台湾乳白蚁（工蚁、兵蚁和若蚁）都对苯酚钠（10 μg/cm）表现出相似的踪迹行为，且沿苯酚钠划线路径爬行的距离无显著差异。聚集选择试验表明含有苯酚钠（1 μg/g、10 μg/g、100 μg/g和1 000 μg/g）的沙块均能显著引起台湾乳白蚁的聚集选择行为，且1 000 μg/g的苯酚钠显著降低了白蚁的存活率。聚集在吡虫啉（50 μg/g）处理沙块上的台湾乳白蚁数量显著低于未处理沙块。然而，当吡虫啉（50 μg/g）与苯酚钠（1 μg/g）联合使用时显著引起了台湾乳白蚁的聚集选择，表明苯酚钠能消除吡虫啉对台湾乳白蚁的驱避作用。本研究为开发对白蚁具有引诱作用的杀虫剂配方提供了理论依据。 |
| 英文摘要: |
| Attracants can trigger the trail-following and aggregation behaviors of termites. When combined with pesticides, attracants can lure and kill termites, increasing the termite control efficiency. Our previous studies showed that phenol and its derivatives had trail-following activity for the Formosan subterranean termite, Coptotermes formosanus. However, these chemicals are non-polar chemicals that are volatile and insoluble in water, which limited their application in termite control. We hypothesized that the polar molecule, sodium phenoxide, could also trigger the trail-following and aggregation behaviors of C. formosanus, and attracted termites when combined with imidacloprid. Y-path tests showed that the trails treated with sodium phenoxide (0.1 μg/cm, 1 μg/cm, 10 μg/cm) had trail-following activity for C. formosanus. In contrast, sodium phenoxide with low (0.01 μg/cm) or high (100 μg/cm) concentrations could not cause the trail-following behavior. In addition, different castes (worker, soldier and nymph) of C. formosanus showed similar trail-following behaviors responding to sodium phenoxide (10 μg/cm) treated trail, and there was no significant difference in the crawling distance along the sodium phenoxide line. Aggregation-choice tests showed that sand blocks treated with sodium phenoxide (1 μg/g, 10 μg/g, 100 μg/g, and 1000 μg/g) could cause the aggregation preference of C. formosanus. In addition, 1 000 μg/g sodium phenoxide significantly decreased survival rate of termite. The number of C. formosanus gathered on sand treated with imidacloprid (50 μg/g) was lower than that of untreated sand significantly . However, the combination of sodium phenoxide (1 μg/g) and imidacloprid (50 μg/g) still triggered the aggregation preference, indicating that sodium phenoxide demised the repelling effect of imidacloprid. Our study provides a theoretical basis for developing insecticide formulations that attract termites. |
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