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害虫声音探测技术作为一门新兴的技术方法,在植物检疫领域具有独特的应用优势。目前国内外已开展了针对林木蛀干害虫的声音探测技术研究,也取得了较好的成果。为此本文利用声音探测技术对口岸经常截获的有害生物缝锤小蠹和美西部云杉小蠹成虫的取食和爬行声信号进行了探讨分析。结果表明,同种小蠹的取食和爬行声信号差异明显,两种小蠹间取食和爬行声信号差异也较大,声信号脉冲持续时间、主频差异显著,利用害虫声音探测技术对林木蛀干类害虫进行监测具有可行性。
As a new technical method, pest sound detection technology has unique application advantages in the field of plant quarantine. Currently at home and abroad have carried out for wood borers pests sound detection technology, but also achieved good results. In this paper, the acoustic detection technique was used to study the feeding and crawling acoustic signals of the harmful pests Melastoma stomatus and the American west spruce beetle, which are often intercepted by the ports. The results showed that there was significant difference in the signals of feeding and crawling between the two beetles, and the differences of feeding and crawling sound signals between the two beetles were also larger. The duration and the dominant frequency of the sound signal pulse were significantly different. Using the pest sound detection technique It is feasible to monitor stem borers.