The cigarette beetle, Lasioderma serricorne F. (Coleoptera: Anobiidae) is an important food storage pest affecting the tobacco industry and is increasingly impacting museums and herbaria. Monitoring methods make use of pheromone traps which can be implemented using chili fruit powder. The objective of this study was to assess the response of L. serricorne to the volatile organic compounds (VOCs) from different chili powders in order to identify the main semiochemicals involved in this attraction. Volatiles emitted by Capsicum annuum, C. frutescens, and C. chinense dried fruit powders were tested in an olfactometer and collected and analyzed using SPME and GC-MS. Results indicated that C. annuum and C. frutescens VOCs elicit attraction toward L. serricorne adults in olfactometer, while C. chinense VOCs elicit no attraction. Chemicals analysis showed a higher presence of polar compounds in the VOCs of C. annuum and C. frutescens compared to C. chinense, with α-ionone and β-ionone being more abundant in the attractive species. Further olfactometer bioassays indicated that both α-ionone and β-ionone elicit attraction, suggesting that these compounds are candidates as synergistic attractants in pheromone monitoring traps for L. serricorne.

中文翻译：

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辣椒的气味。干果作为Lasioderma serricorne F.（鞘翅目：Anobiidae）的候选引诱物

香烟甲虫Lasioderma serricorne F.（鞘翅目：Anobiidae）是影响烟草业的重要食品储藏害虫，并且正越来越多地影响博物馆和草本植物。监测方法利用信息素陷阱，可以使用辣椒粉来实现。这项研究的目的是评估L. serricorne对来自不同辣椒粉的挥发性有机化合物（VOC）的反应，以鉴定参与该吸引力的主要化学信息素。在嗅觉仪上测试了辣椒，C。frutescens和C. chinense干果粉散发的挥发物，并使用SPME和GC-MS进行了收集和分析。结果表明，C。annuum和C.紫苏的VOC朝向引导学生吸引力L.烟草甲在嗅觉计的成年人，而C.楸的VOC引起没有吸引力。化学分析表明，与C. chinense相比，C。annuum和C. frutescens的挥发性有机化合物中极性化合物的含量更高，其中有吸引力的物种中α-紫罗兰酮和β-紫罗兰酮含量更高。进一步的嗅觉仪生物测定表明，α-紫罗兰酮和β-紫罗兰酮均可引起吸引力，这表明这些化合物可作为信息素监测L. serricorne的诱集剂中的协同引诱剂。