通过对花椒台湾狭天牛生物学特性的观察及成虫田间种群消长动态的调查。明确了台湾狭天牛1年发生1代,幼虫自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;建立了花椒台湾狭天牛成虫发生消长动态图,从图中可以看出成虫种群数量在田间呈单峰型,发生高峰期为6月上旬。
The observations of biological features and the investigations of population dynamics of Stenhomalus Taiwanus were studied. The results showed that the pest occurred one generation every year. Larvae damaged cortex or xylem of trunk of Chinese prickly ash trees. They could overwinter as larvae in the xylem. Adults liked to rest on branches and leaves quietly and laid eggs on withered tresses. The figure of population dynamics of the adults was built. The figure demonstrated that adults'fastigium appeared on the first ten clays of June.