Yan Junjie, Zhang Mengdi, Li Jing, Rondon Silvia I, Gao Yulin
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, P. R. China.
Oregon Integrated Pest Management Center, Oregon State University, Corvallis, OR, USA.
Pest Manag Sci. 2024 Oct 10. doi: 10.1002/ps.8482.
Potato (Solanum tuberosum L.) is a staple food crop globally, but its production is consistently threatened by diseases and arthropod pests like the potato tuber moth, Phthorimaea operculella Zeller (Lepidoptera: Gelechiidae). Phthorimaea operculella is often controlled by chemical applications. Sex pheromones have been used to detect, monitor, or control agricultural pests. Phthorimaea operculella sex pheromones mainly contain two chemical structures, 4E,7Z-trisadene-1-ol acetate and 4E,7Z,10Z-trisadene-1-ol acetate. However, the pheromone analogs are expected to act as mimics, synergists, antagonists, and inhibitors for pheromones and can be synthesized at a large scale.
In this study, a total of 11 sex pheromone analogs of P. operculella were designed and synthesized. Results showed that the antennae exhibited a concentration-dependent response to sex pheromones and their analogs. Different analogs and dosages had significant effects on the electrophysiological response of the antennae. In the field trials, when used alone, A, B and B exhibited significant trapping effects in tobacco and potato fields. When used alternately with sex pheromone components, the analog B had significantly higher trapping effects in both tobacco and potato fields compared to the control, while combinations containing fluorinated analogs showed lower trapping effects.
In summary, the use of sex pheromone analogs holds great promise for integration into pest management programs. Further investigation to fine-tune dosage and duration for optimal use is still needed. © 2024 Society of Chemical Industry. Published by John Wiley & Sons Ltd.
马铃薯（Solanum tuberosum L.）是全球主要的粮食作物，但其生产一直受到疾病和节肢动物害虫的威胁，如马铃薯块茎蛾（Phthorimaea operculella Zeller，鳞翅目：麦蛾科）。马铃薯块茎蛾通常通过化学药剂进行防治。性信息素已被用于检测、监测或控制农业害虫。马铃薯块茎蛾性信息素主要包含两种化学结构，4E,7Z-三烯-1-醇乙酸酯和4E,7Z,10Z-三烯-1-醇乙酸酯。然而，性信息素类似物有望作为性信息素的模拟物、增效剂、拮抗剂和抑制剂，并且可以大规模合成。
在本研究中，共设计并合成了11种马铃薯块茎蛾性信息素类似物。结果表明，触角对性信息素及其类似物表现出浓度依赖性反应。不同的类似物和剂量对触角的电生理反应有显著影响。在田间试验中，单独使用时，A、B和B在烟草和马铃薯田表现出显著的诱捕效果。当与性信息素成分交替使用时，类似物B在烟草和马铃薯田的诱捕效果均显著高于对照，而含有氟化类似物的组合诱捕效果较低。
总之，性信息素类似物在纳入害虫管理计划方面具有很大潜力。仍需要进一步研究以微调剂量和持续时间以实现最佳使用。© 2024化学工业协会。由John Wiley & Sons Ltd出版。
