建庄油松梢小蠹 (Cryhalus tabulaeformis chienzhuangensis)是油松的专食性害虫 ,年发生 3代 ,以成虫在油松侧枝皮层内和木质部表层越冬者占 95 % ,以幼虫越冬者占5 %。第一代成虫出现期为 7月到 8月中旬 ,第二代成虫为 8月中旬到 9月中旬 ,第三代成虫在9月下旬始现 ,越冬后延至翌年 7月上旬。成虫对 α-蒎烯和 β-蒎烯有明显正趋性 ,前者诱集效果优于后者。设置饵枝的诱集效果良好。以 40 %氧化乐果和 40 %乐果 1 0 0倍液喷杀新侵入成虫 ,毒杀作用明显 ,并使残留成虫产卵量下降 80 %左右 Cryhalus tabulaeformis chienzhuangensis, a herbivorous pest of Pinus tabulaeformis, occurs three generations per year, with adults accounting for 95% of the individuals in the lateral branches of the pine and on the surface of the xylem, and 5% of the larvae passing through the winter. The first generation of adults appeared from July to mid August, the second generation of adults from mid-August to mid-September, the third generation of adults in late September, after the winter extended to early July the following year. Adults on α-pinene and β-pinene have significant positive trend, the former is better than the latter trap effect. Set bait trap effect good. With 40% omethoate and 40% dimethoate 100 times to kill new invasive adults, poisoning effect is obvious, and the residual adult fecundity decreased by about 80%