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林业科学 ›› 1998, Vol. 34 ›› Issue (5): 83-88.

• 论文及研究报告 • 上一篇    下一篇

杨始叶螨滞育研究

孙绪艮1,李波1,周成刚1,李占鹏2   

  1. 1. 山东农业大学林学院 泰安 271018
    2. 山东省林木保护站 济南 251000
  • 收稿日期:1997-04-25 出版日期:1998-09-25 发布日期:1998-09-25

A STUDY ON THE DIAPAUSE OF EOTETRANYCHUS POPULI (KOCH)

Xugen Sun1,Bo Li1,Chenggang Zhou1,Zhanpeng Li2   

  1. 1. Shandong Agricultural University Taian 271018
    2. Forestry Protection Dept. of Shandong Province Jinan 251000
  • Received:1997-04-25 Online:1998-09-25 Published:1998-09-25

摘要:

杨始叶螨Eotetranychus populi(Koch)是危害杨、柳科植物的重要害螨。研究结果表明,该螨以受精雌成螨滞育,为长日照(13h/d以上)发育,短日照(11h/d)滞育型;临界光照时间为12h/d左右;光周期感应螨态为幼螨→第一若螨→第二若螨的连续2个发育阶段。在相同短日照(10h/d)下,较低温度(21℃以下)促进滞育,较高温度(25℃)抑制滞育。

关键词: 杨始叶螨, 滞育, 临界光照时间, 光周期感应螨态

Abstract:

The present paper deals with diapause of Eotetranychus populi (Koch).The results show that E.populi expresses diapause with fertile female adults, and it grows under long light (above 13 hours light per day) and produces diapause under short light (below 11 hours light per day). The threshold of photoperiod inducing diapause is at 12 hours light.The larva, protonymph are sensitive to photoperioodic changes, but the adults and eggs are not.Lower temperature (below 21℃) promotes the incidence of diapause and higher temprature (above 25℃) restrains it when they are subject under the photoperiod of 10 hours per day.

Key words: Eotetranychus populi, Diapause, The threshold of photoperiod, Photoperiod sensitive mite stage