杜鹃简脉茎蜂生物学特性  

Biological characteristics of Janus dujuan(Hymenoptera,Cephidae)

作　　者：李东宾 徐婧 何立平 卞正平 来燕学 LI Dongbin;XU Jing;HE Liping;BIAN Zhengping;LAI Yanxue(Ningbo Forest Farm,Ningbo 315440,China;Ningbo Longhui Ecological Technology Co.Ltd,Ningbo 315000,China)

机构地区：[1]宁波市林场,浙江宁波315440 [2]宁波龙卉生态科技有限公司,浙江宁波315000

出　　处：《中国森林病虫》2023年第6期14-18,共5页Forest Pest and Disease

基　　金：宁波市林场科技推广项目“高山杜鹃病虫害防治技术研究”(LK202103)。

摘　　要：在浙江四明山新发现危害杜鹃花属植物的杜鹃简脉茎蜂Janus dujuan Wei。通过野外调查和室内观察,研究该茎蜂的生物学特性。结果表明:杜鹃简脉茎蜂在浙江四明山1 a发生1代,以老熟幼虫在枝内越冬,每年2月下旬幼虫开始化蛹,4月中旬成虫羽化,4月下旬至8月中旬为危害期;受害的杜鹃新抽嫩枝萎蔫干枯,严重影响其生长和观赏价值。自然条件下杜鹃简脉茎蜂在多种常绿杜鹃亚属植株上均能完成发育,其中云锦杜鹃Rhododendron fortunei与红滩杜鹃Rhododendron chihsinianum受害严重。发现杜鹃简脉茎蜂一种寄生天敌−吉安尼姬蜂Nippocryptus jianicus Sheng&Sun。该结果可为杜鹃简脉茎蜂的监测和防治提供依据,并为简脉茎蜂属昆虫研究提供参考。Janus dujuan Wei is the new pest damaging Rhododendron plants discovered in Siming Mountain,Zhejiang province.The biological characteristics of J.dujuan were studied through field survey and indoor observation.The results showed that J.dujuan had one generation a year in the Siming Mountain and mature larva overwintered in the branches.The larva of J.dujuan began to pupate in mid-February,the adults emerged in mid-April,and the damage period was from late April to mid-August.The newly sprouted shoots of damaged Rhododendron wilted and dried up,which seriously affected the growth and ornamental value.Under natural conditions,J.dujuan could complete the development on various evergreen Rhododendron plants,among which Rhododendron fortunei and Rhododendron chihsinianum were seriously damaged.Nippocryptus jianicus Sheng&Sun,a parasitic natural enemy of J.dujuan was found.The results can provide the basis for monitoring and control of J.dujuan,and to study of Janus.

关 键 词：杜鹃简脉茎蜂 杜鹃花属 生物学特性 生活史 寄生天敌 

分 类 号：S763.43[农业科学—森林保护学]