人工繁育花绒寄甲种群的越冬情况调查  

Investigation on the Overwintering Situation of the Artificial Breeding Population of Darstarcus helophoroides in Shandong Province

作　　者：高尚坤[1] 孙玉江 孙东兴 单冬肖 周成刚[1] GAO Shangkun;SUN Yujiang;SUN Dongxing;SHAN Dongxiao;ZHOU Chenggang

机构地区：[1]山东农业大学植物保护学院/山东省林业有害生物防控工程技术研究中心,山东泰安271018 [2]青岛市园林和林业局,山东青岛266061 [3]威海市海滨林场,山东威海264200 [4]威海市环翠区自然资源局,山东威海264200

出　　处：《山东林业科技》2020年第4期68-71,共4页Journal of Shandong Forestry Science and Technology

基　　金：山东省农业科技资金项目(林业科技创新)(2019LY003);山东省自然科学基金(ZR2017BC071)山东省重点研发计划(2018GSF117013)。

摘　　要：花绒寄甲Darstarcus helophoroides是松材线虫病主要媒介昆虫—松褐天牛Monochamus alternatus的重要寄生性天敌,其在松褐天牛适生区的越冬情况一定程度上决定了翌年的种群基数和防治效果。本研究在山东威海和青岛的松材线虫病疫区内设置笼罩,释放人工繁育的花绒寄甲种群,翌年调查其越冬存活率和越冬场所。结果表明人工繁育的花绒寄甲在青岛和威海均能够成功越冬,平均存活率在50%以上,主要以单头成虫在树皮下和树皮缝内越冬。本次调查结果为明确花绒寄甲在山东省内人工移殖或引进的可行性提供依据。Darstercus helophoroides is an important parasitical natural enemy of Monochamus alternatus,which is one vector of pine wood nematode.Its overwintering in the suitable area of M.alternatus determines the control effect in the next year to a certain extent.In this study,the survival rate and overwintering locations of the artificial breeding of the parasitoids were investigated in the following year by releasing them in the epidemic areas of pine wood nematode in Weihai and Qingdao,Shandong Province.The results showed that the artificially breeding D.helophoroides could survive the winter successfully in both Qingdao and Weihai,mainly under the bark and in the bark seam.The results of this investigation provide a basis for clarifying the feasibility of artificial colonization or introduction of D.helophoroides in Shandong Province.

关 键 词：花绒寄甲 人工繁育种群 越冬场所 生物防治 松褐天牛 

分 类 号：S764.306[农业科学—森林保护学]