Comparison of Acoustic Characteristics of Gnathotrichus materiarius and Gnathotrichus sulcatus

As an emerging technology for pest monitoring, sound detection technology has the unique advantages in the field of plant quarantine. Experts at home and abroad have done lots of researches on sound detection technology for trunk borers, and achieved good results. The audible signals of adult Gnathotrichus mate- riarius and G. sulcatus were detected using sound detection method. It was concluded that the feeding and crawling acoustic signals of G. materiarius and G. sulca- tun were significantly different, and the acoustic signals were greatly different even in the same species. In addition, the signal pulse duration and dominant frequen- cy were significantly different. Therefore, it is feasible to monitor trunk borers using sound detection technology.

一种Xyloterinus属的危险性有害生物——Xyloterinus politus

Xyloterinus politus作为一种危险性有害生物,可对橡树、山核桃、山毛榉、桦木、松属等树种造成严重的危害。Xyloterinus属全世界种类很少,目前明确已知的只有X.politus一种,本文就X.politus的分类地位、形态特征、生物学特性以及防治措施等方面进行了详细介绍,同时本文通过检索表将X.politus与其近似种进行了简单的鉴定比较。