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林业科学 ›› 1996, Vol. 32 ›› Issue (2): 144-149.

• 论文及研究报告 • 上一篇    下一篇

国槐截形叶螨的生物学特性及防治*

陈学英1,周章义1,李景辉2   

  1. 1. 北京林业大学林业资源与环境学院 北京 100083
    2. 北京市林业局 北京 100029
  • 收稿日期:1994-09-20 出版日期:1996-03-25 发布日期:1996-03-25

STUDIES ON THE BIONOMICS AND CONTROL OF TETRANYCHUS TRUNCATUS EHARA

Xueying Chen1,Zhangyi Zhou1,Jinghui Li2   

  1. 1. College of Forest Resources, BFU. Beijing 100083
    2. Beijing Forestry Bureau Beijing 100029
  • Received:1994-09-20 Online:1996-03-25 Published:1996-03-25

摘要:

北京地区国槐普遍受截形叶螨(Tetranychus truncatus Ehara)危害,从5月下旬至11月上旬均有发生,危害盛期在7 — 8月份,有螨叶率市区达70%,近郊区可达90%以上。根据有效积温及气象资料推算,截形叶螨在北京地区每年发生15—17代。在28℃、RH67%条件下,室内饲养, 发育一代平均6.7天,在27℃、Rh72%条件下,雄成螨平均寿命7.5天, 雌成螨10.7天。截形叶螨以成螨越冬,其场所主要在树干及粗枝树皮裂缝内,极少部分在小枝、树冠下草地及根际土壤中。早春用生物制剂——2.5%日光霉素1000倍, 10%增效浏阳霉素2000倍73%克螨特乳油2000倍及洗衣粉400倍,碳酸氢铵颗粒剂100倍防治,均能取得很好的效果。

关键词: 截形叶螨, 越冬, 生物制剂, 杀螨剂

Abstract:

Tetranychus truncatus is a mite pest of Sophora japonical in the district of Beijing.It occurs from last May to early November, with a peak harmful time from July to August.In the urban district, about 70% of the leaf was injured, and in the suburb, it was over 90%.there are 15-17 generations a year. Each generation lasts 6.7 days on an average at 28℃, RH 67%.The average life-span is 7.5 days for the males and 10.7 days for the females at 27℃, RH 72%.It overwinters as adult in the creack of trunk and limb, quite few are in the branchlet, grass and soil layer of the root. Using 25% Nivkomycin at a dilution of 1:1000, 10% Zeng xiao lui yang mei su of 1:2000, 73% propargite of 1:2000, washing powder of 1:400, pellet NH4HCO3 of 1:100 in spring, significant effectiveness was obtained.

Key words: Tetranychus truncatus, Hibernation, Biological insecticide, Acaricide