草莓二斑叶螨外部形态的扫描电镜观察  

Scanning electron microscope observation of external morphology of Tetranychus urticae Koch on strawberry

作　　者：姜莉莉 安梅荣 蒋恩顺[1] 孙瑞红[1] 武冲[1] JIANG Lili;AN Meirong;JIANG Enshun;SUN Ruihong;WU Chong(Shandong Institute of Pomology,Tai’an,Shandong 271000,China;Zhoudian Office of Daiyue District,Tai’an,Shandong 271021,China)

机构地区：[1]山东省果树研究所,山东泰安271000 [2]山东省泰安市岱岳区粥店办事处,山东泰安271021

出　　处：《生物灾害科学》2024年第3期438-444,共7页Biological Disaster Science

基　　金：山东省重点研发计划(2023TZXD057、2022CXPT017);中央引导地方科技发展专项(YDZX2023031)。

摘　　要：【目的】为深入了解草莓二斑叶螨(Tetranychus urticae Koch)各发育阶段的外部形态和超微结构特征,为草莓害螨的生物学研究和科学防控提供参考。【方法】以草莓植株培养获得不同发育阶段的二斑叶螨个体样本,采用扫描电镜观察各生育阶段的外部形态和超微结构。【结果】草莓二斑叶螨卵为圆形;幼螨足3对,有肛毛无生殖毛,生殖区完全不可见;若螨4对足,第Ⅰ若螨无生殖毛,腹面肛区末端肤纹纵向,背毛c1之间出现肤纹突;第Ⅱ若螨出现生殖区痕迹和1对生殖毛,sc1至c1之间出现肤纹突;雌成螨呈椭圆形,腹毛3a至4a、4a至ag两侧发现肤纹突;雄成螨呈卵圆形,背腹表皮肤纹大致为横向,无肤纹突。[Objective]This study was conducted to understand the external morphological and ultrastructural characteristics of Tetranychus urticae Koch on strawberry at various developmental stages,and provide references for the biological research and scientific control of strawberry mite.[Method]Individual samples of Tetranychus urticae Koch at different developmental stages were cultured from strawberry plants,and the external morphology of different developmental stages were observed by scanning electron microscope.[Result]Results showed that the egg was round.The larva had 3 pairs of feet,with anal setae and no genital setae,and the genital area was completely invisible.The nymph had 4 pairs of feet,but protonymph had no genital setae,and also the dermatoglyph at the end of the abdominal anal region were longitudinal,and the dorsal lobes appeared between the dorsal setae c1.Traces of the genital area and a pair of genital setae appeared on deutonymph,dorsal lobes appeared between sc1 and c1.The female adult was oval in shape,and lobes were found on both sides of the ventral setae from 3a to 4a and from 4a to ag.Male adult was oval,the dermatoglyph were roughly horizontal,without dorsal lobes.

关 键 词：草莓 二斑叶螨 发育阶段 扫描电镜 形态特征 

分 类 号：S436.68[农业科学—农业昆虫与害虫防治]