烟草潜叶蛾雌雄蛹的鉴别  

Sexing of Phthorimaea operculella Pupae

作　　者：薛冬[1] 陈丹[1] 王新伟[1] 王秀芳[1] 赵冲[1] 任广伟[1] 

机构地区：[1]中国农业科学院烟草研究所烟草病虫害监测与综合治理重点实验室,266101

出　　处：《烟草科技》2013年第9期85-86,共2页Tobacco Science & Technology

基　　金：中国烟草总公司项目“全国烟草有害生物调查研究”(110200902065);山东省烟草公司项目“山东烟草有害生物调查及综合治理研究”(201001)

摘　　要：为了掌握烟草潜叶蛾Phthorimaea operculella(Zeller)田间种群的性别比例,研究了利用烟草潜叶蛾蛹腹节的外部形态特征区分雌雄蛹的方法。结果表明:雌蛹第8腹节腹面中央有一条较长的纵裂缝,裂缝连接第7和9腹节,且裂缝与第7腹节连接处呈"Y"字形结构,此裂缝由第8腹节上的生殖孔和第9腹节上的产卵孔连接而成。雄蛹第8腹节无裂缝,在第9腹节腹面中央有一较短的纵裂缝。烟草潜叶蛾雌雄蛹的有效区分有利于准确监测其种群的发生动态。In order to ascertain the sex ratio of field population of Phthorimaea operculella, a method based on the morphology of abdominal segments of Phthorimaea operculella pupae was studied. The results showed that the female pupa had a long suture in the middle of the 8th abdominal segment, the suture extended to the 7th and 9th abdominal segments, it shaped as letter ＂Y＂ at the joint to the 7th abdominal segment. The long suture was formed by connecting the gonopore on the 8th abdominal segment with the oviporus on the 9th abdominal segment. The male pupa had no suture on the 8th abdominal segment, there was only a short longitudinal suture on the 9th abdominal segment. Effective pupa sexing is beneficial to monitoring dynamically the population occurrence of Phthorimaea operculella.

关 键 词：烟草潜叶蛾 蛹 性别 鉴别 

分 类 号：TS411.1[农业科学—烟草工业]