合成植物挥发物的混合物能吸引更多的茶蓟马 Dendrothrips minowai Priesner (Thysanoptera: Thripidae) 并将其用作茶园中的引诱剂

Plants Pub Date : 2024-07-15 DOI:10.3390/plants13141944
Zhengwei Xu, Guowei Zhang, Yan Qiu, Z. Luo, Xiaoming Cai, Zhaoqun Li, Lei Bian, Nanxia Fu, Li Zhou, Fida Hussain Magsi, Zongmao Chen, Xiaoming Zhang, Chunli Xiu
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引用次数: 0

摘要

茶蓟马(Dendrothrips minowai)是中国、朝鲜和日本茶树(Camellia sinensis)最严重的吸浆害虫之一。植物挥发性引诱剂被广泛用于监测和大规模诱捕。此前,我们曾证实,在茶园中,以对甲氧基苯甲醛、丁香酚、法呢烯或 3-甲基丁醛为诱饵的粘性诱捕器捕获的褐飞虱数量显著增加,其中对甲氧基苯甲醛的捕获量最大。本研究表明,在实验室条件下进行的 H 型管嗅觉测定中,与同等剂量的对甲氧基苯甲醛单独使用相比,对甲氧基苯甲醛、丁香酚和法呢烯混合物对褐花白蝶成虫的吸引力明显更高。此外,在 2022 年进行的现场实验中,浸渍了对甲氧基苯甲醛、丁香酚和法呢烯(3-4.5 毫克,比例为 3:1:1)三元混合物的橡胶隔膜在两周内捕获的成虫数量最多,超过了用单个成分或溶剂对照保释的诱捕器。值得注意的是,使用这些诱饵的大规模诱捕策略取得了 62.8% 至 70.7% 的控制效果,而在 2023 年的三个测试地点,不使用诱饵的诱捕效果仅为 14.2% 至 35.4%。这些结果表明,对甲氧基苯甲醛、丁香酚和法呢烯的组合对 D. minowai 具有添加或协同作用。总之,我们的研究结果建立了一个理论框架,并为将基于引诱剂的策略纳入蓟马综合治理策略提供了实际技术支持。
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Mixture of Synthetic Plant Volatiles Attracts More Stick Tea Thrips Dendrothrips minowai Priesner (Thysanoptera: Thripidae) and the Application as an Attractant in Tea Plantations
The stick tea thrip (Dendrothrips minowai) is one of the most serious sucking pests of tea plants (Camellia sinensis) in China, North Korea, and Japan. Plant volatile lures are widely used for both monitoring and mass trapping. Previously, we demonstrated that sticky traps baited with p-anisaldehyde, eugenol, farnesene, or 3-methyl butanal captured significantly more D. minowai in tea plantations, with p-anisaldehyde notably capturing the most. In this study, we showed that D. minowai adults exhibited significantly higher attraction to mixtures of p-anisaldehyde, eugenol, and farnesene compared to an equivalent dose of p-anisaldehyde alone in H-tube olfactometer assays under laboratory conditions. Moreover, in field experiments conducted in 2022, rubber septa impregnated with a ternary blend of p-anisaldehyde, eugenol, and farnesene (at 3–4.5 mg and a ratio of 3:1:1) captured the highest number of adults on sticky traps, outperforming traps bailed with individual components or a solvent control over two weeks. Significantly, the mass trapping strategy employing these lures achieved control efficacies ranging from 62.8% to 70.7% when compared to traps without attractant, which achieved control efficacies of only 14.2% to 35.4% across three test sites in 2023. These results indicate that the combination of p-anisaldehyde, eugenol, and farnesene exhibits an additive or synergistic effect on D. minowai. In conclusion, our findings establish a theoretical framework and provide practical technological support for integrating attractant-based strategies into comprehensive thrips management strategies.
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