花椒台湾狭天牛生物学习性研究

通过对云南花椒台湾狭天牛生物学习性的观察和调查,明确了其在当地1年发生1代,幼虫从花椒树干的皮层逐渐蛀入木质部,并以幼虫在木质部内越冬;成虫喜静息于枝叶上,产卵于衰弱或半枯死的枝条上,成虫种群数量在田间的消长呈单峰型,发生高峰期为6月上旬。对台湾狭天牛成虫种群发生消长与温度、湿度关系进行相关性分析,表明成虫的发生与温、湿度的相关性不显著。

A study on biological habits of Stenhomalus taiwanus on prickly ash

Through observation and investigation on biological habits of Stenhomalus taiwanus on prickly ash in Yunnan, it was made clear that S. taiwanus had one generation one year in the local. Larvae worked theirs way into xylem through cortex of the trunk, and survived winter in the xylem. Adults liked perching quietly on twigs and leaves and they laid eggs on weak or withered twigs. Population dynamics of adults in the fields showed single peak, reaching the highest in early June. Analysis was made and it indicated that adult occurrence had no significant correlation with temperature or humidity.