Pea odorants guide host finding behaviour in pea moth: a new strategy for sustainable insect management

豌豆气味剂引导宿主寻找豌豆蛾的行为：可持续昆虫管理的新策略

• 批准号: 117370674
• 负责人: Dr. Gunda Thöming
• 金额: --
• 依托单位: Plant Health and Plant Protection Division
• 依托单位国家: 德国
• 项目类别: Research Fellowships
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2012-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/117370674?language=en
• 关键词: Pea; odorants; guide; host; finding

The pea moth Cydia nigricana (Lepidoptera: Tortricidae) is the key pest of pea Pisum sativum. Environmentally safe pest control techniques need to be developed since few insecticides are available for efficient control. First studies demonstrate a strong correlation between the seasonal flight period of C. nigricana and the phenology of pea. We propose to study the olfactory space between pea plant and pea moth, aiming at the identification of the volatile cues that encode host recognition and host finding in pea moth females, and the practical use of these compounds for safe management of pea moth. Communication between insect and plant regarding host finding, mating and egg laying will be investigated. The identification of behaviourally active host plant signals will enable the development of an effective method for direct pea moth control. In addition, the characterisation of temporal and physiological variation in pea plant volatile emission will be studied to evaluate the potential of breeding pea for resistance to insect herbivores. The expected output is improved knowledge of chemical communication between the pea moth and its host plant, as well as insights into the linkage between the biochemistry of the pea secondary metabolites and pea moth biology and ecology. The potential use of pea plant volatiles for direct and indirect pea moth management will be evaluated.

豌豆蛾（鳞翅目：扁桃科）是豌豆的主要害虫。由于可用于有效控制的杀虫剂很少，因此需要开发环境安全的虫害控制技术。首先，研究表明黑穗病蝇的季节性飞行期与豌豆物候有很强的相关性。我们拟对豌豆植物和豌豆蛾之间的嗅觉空间进行研究，旨在鉴定豌豆蛾雌虫体内编码寄主识别和寄主发现的挥发性线索，并将这些化合物用于豌豆蛾的安全管理。昆虫与植物在寻找寄主、交配和产卵方面的交流将被研究。识别行为活跃的寄主植物信号将有助于开发一种直接控制豌豆蛾的有效方法。此外，还将研究豌豆植物挥发物释放量的时间和生理变化特征，以评估培育豌豆抗食草昆虫的潜力。期望的结果是提高对豌豆蛾与其寄主植物之间化学交流的认识，以及对豌豆次级代谢物的生物化学与豌豆蛾生物学和生态学之间联系的见解。将评价豌豆植物挥发物在直接和间接管理豌豆蛾方面的潜在用途。