一种标定烟粉虱若虫位置及判断若虫发育阶段的方法
Method for marking location and determining developmental stage of Bemisia tabaci nymph
陈庭慧1，张 帆2，贾栋伟1，李元喜1**
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作者单位：1南京农业大学植物保护学院昆虫学系 农业部作物病虫害监测与防控重点开放实室 南京 210095；2 北京市农林科学院植保环保所 北京 100089)
中文关键词：烟粉虱若虫， 标定， 龄期， 尺寸
英文关键词：
中文摘要：
根据烟粉虱Bemisia tabaci(Gennadius)1龄后期若虫固定取食后不再移动的现象，采用
数码相机拍照，然后打印输出到A4纸上的方法，使得对烟粉虱若虫位置的标定简单易行。利用该方法，
观察烟粉虱发育过程中若虫的形态变化，分析烟粉虱若虫龄期和身体尺寸的关系，结果表
明，可以根据若虫大小，结合形态特征识别烟粉虱若虫的龄期。
英文摘要： It had been observed that the nymphs of the whitefly,
Bemisia tabaci(Gennadi
us), would not move after feeding in the late first instar. A method for marking the
locations of the nymphs on host leaf was developed based on the printed photos on A4 paper taken with digital camera. Furthermore, the morphological change of nymphs was observed, and the relationship between the body size and the instars of B. tabaci nymphs was analyzed with this method. The results indicated that nymphs of different instars could be distinguished according to their body size and
morphology.