作　　者： ; ; ; ; ; ; ; ; ; ; ; ;

机构地区： 深圳出入境检验检疫局

出　　处： 《植物检疫》 2013年第1期6-10,共5页

摘　　要： 为了在口岸检疫中应用木材钻蛀害虫声检测,测试了鳞毛粉蠹(Minthea rugicollis Waller)、双钩异翅长蠹(Heterobostrychus aequalis(Waterhouse))、棕异翅长蠹(Heterobostrychus brunneus(Murray))、黑双棘长蠹(Sinoxylon conigerum Gerstaecker)、刺角楝天牛(Cordylomera spinicornis(Fabricius))和宽斑脊虎天牛(Xylotrechus colonus Fabricius)等6种昆虫幼虫蛀食声的声学特征。6个种的蛀食声均为不连续的单个声脉冲,波形包络前大后小,逐渐收敛;这些蛀食声均属于离散谱,且频带较宽,主要能量集中在10kHz以下,一般都至少有一个明显的高峰(主频)。单个脉冲的持续时间和主频在不同种间有差异,并存在这些昆虫科间主频差异的可能性。 In order to make use of acoustical detection in port quarantine,6 species of wood borers,Minthea rugicollis Waller,Heterobostrychus aequalis（Waterhouse）,Heterobostrychus brunneus（Murray）,Sinoxylon conigerum Gerstaecker,Cordylomera spinicornis（Fabricius） and Xylotrechus colonus Fabricius are studied on acoustic characteristics of their lavae feeding sound.The sound of the 6 species belongs to discrete spectrum with wide bandwidth and main energy below 10 kHz,and is consist of discontinuous single pulse with an waveform envolope curve from high to low in amplitude and gradually convergent in the end.There is at least a distinct basic frequency peak（dominant frequency） in different species.The duration of a single pulse and the dominant frequency are various in differrent species,and the dominant frequency are probably different between families of the borers.

关 键 词： 木材 钻蛀害虫 检疫 声学特征 声脉冲 主频

领　　域： [农业科学]