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建宁杉奕刺蛾(PhlossajianninganaYangetJiang)是我国南方杉木的重要食叶害虫,1年1代,幼虫7龄,以老熟幼虫在茧内,集中于树冠下浅土层中越冬。翌年5月上旬开始化蛹,羽化盛期在6月中旬。1-4龄幼虫食量甚微。山谷及低海拔纯林受害重,混交林受害轻。溴氰菊酯及一般有机磷药剂可有效防治3-4龄幼虫。结合春末抚育覆土可显著减少成虫羽化出土。应用辛硫磷等于老熟幼虫下树入土结茧之前,在地面喷药或以白僵菌防治,可大幅度压低虫口。
One of the major leaf-eating pests of Chinese fir in the south of China is Phlossajianningana Yangetiang, which larvae are 7-year old and 1 year old. The larvae of the larvae are crested in the cocoon. The following year in early May began to pupate, plumage peak in mid-June. 1-4 instar larvae eat very little. Valleys of valleys and low-altitude pure forests are harvested, and the mixed forest is harvested. Deltamethrin and general organophosphorus pesticides can effectively control 3-4 instar larvae. Combined with the late spring turtles can significantly reduce the emergence of adult emergence. Application of phoxim equal to mature larvae under the tree into the cocoon before spraying or control of Beauveria bassiana, can greatly reduce the insect population.