林丹烟剂防治落叶松鞘蛾对寄生蜂种群的影响  

Effect on parasitic wasp of lindane aerosol for Coleophora dahurica control

作　　者：房春国 孙万吉 张英伟 

机构地区：[1]新宾县林业局,辽宁新宾113200 [2]抚顺市森防检疫站,辽宁抚顺113008

出　　处：《辽宁林业科技》2001年第1期24-25,41,共3页Liaoning Forestry Science and Technology

摘　　要：应用林丹烟剂大面积防治兴安落叶松鞘蛾 ,对其寄生蜂种群有显著的副作用 ,可导致寄生蜂总寄生率下降 6 3% ,特别对小蜂类种群影响更大。试验结果看出 ,放烟后第 3年 ,防治区鞘蛾种群数量可回升到接近放烟前的水平 ,而寄生蜂的种群数量却增长不到放烟前的 50 %。放烟不仅可以直接减少寄生蜂的数量 ,还可大量杀伤其中间寄主 。Effects of aerosol on parasitic wasp were studied in this paper.The experiments illustrated that lindane aerosol could reduce the parasitic rate of wasps to 63%. The amount of pests recovered in the third year after the treatment while the number of parasitic wasps was only 50% of that before using the chemical. Study also conceal that the aerosol can kill interhosts of wasps thus influences the recover of wasp population.

关 键 词：林丹烟剂 兴安落叶松鞘蛾 寄生蜂 种群数量 寄生率 化学防治 天敌保护 

分 类 号：S763.712.2[农业科学—森林保护学] S763.420.6[农业科学—林学]