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林业科学 ›› 2004, Vol. 40 ›› Issue (2): 90-95.doi: 10.11707/j.1001-7488.20040216

• 论文及研究报告 • 上一篇    下一篇

天敌昆虫对美国白蛾的生物控制研究

魏建荣 王传珍 曲花荣 杨忠岐 邵凌松   

  1. 中国林业科学研究院森林生态环境与保护研究所 北京100091;山东省烟台市森保站 烟台264000
  • 收稿日期:2002-06-18 修回日期:1900-01-01 出版日期:2004-03-25 发布日期:2004-03-25

Study on Biological Control of Fall Webworm by Insect Natural Enemy

Wei Jianrong,Wang Chuanzhen,Qu Huarong,Yang Zhongqi,Shao Lingsong   

  1. The Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry Beijing100091;The Forestry Protection Station of Yantai, Shandong Province Yantai264000
  • Received:2002-06-18 Revised:1900-01-01 Online:2004-03-25 Published:2004-03-25

摘要:

利用白蛾周氏啮小蜂对美国白蛾进行生物防治,取得了较好效果。在连续对4代美国白蛾进行放蜂的防治区,美国白蛾的危害下降,而对照区美国白蛾仍造成一定的危害。放蜂区白蛾周氏啮小蜂对美国白蛾蛹期的寄生率经2a的防治后达到50%~70% ,同时由于没有施用化学农药,保护了其它天敌,各种天敌昆虫的总寄生率达到83.26%~95.82%。应用灰色数学中关联度的计算方法,表明人工释放的白蛾周氏啮小蜂是生物控制美国白蛾的主要因子,但几乎不影响其它天敌昆虫对美国白蛾的寄生。各种天敌共同而有效地控制了美国白蛾的危害

关键词: 美国白蛾, 白蛾周氏啮小蜂, 生物防治, 天敌昆虫, 关联度

Abstract:

Hyphantria cunea were effectively controlled by using Chouioia cunea as a major biological control agent. In parasitic wasp successively released areas where 4 consecutive generations of H. cunea were studied, the damage caused by Fall Webworm decreased but in control areas the damage had no change. The parasitism rates in pupae of Fall Webworm caused by C. cunea reached to 50%~70% after 2 years of Control effort. Because of no pesticide used in these areas, Where almost all the natural enemies were protected, overall parasitism rates of all parasitic insects in pupae of Fall Webworm reached to 83.26%~ 95.82%. The results obtained by calculating the relational grade among parasitism rates of different insect natural enemies showed that C. cunea released by man was the major factor in biological control of the Fall Webworm and had little influence on other insect natural enemies. The damage caused by Fall Webworm was effectively reduced by all of natural enemies acting together.

Key words: Hyphantria cunea, Chouioia cunea, Biological control, Insect natural enemy, Relational grade