青海云杉母树林害虫天敌资源及保护利用  

On the Use and Protection of the Natural Enemies of Insect Pests in the Seed Stands of Picea crassifolia

作　　者：尹承陇 汪有奎 林海 张耀荣 李进军[4] 

机构地区：[1]甘肃省林木种苗管理总站,甘肃,兰州,730046 [2]甘肃祁连山自然保护区管理局,甘肃,张掖,734000 [3]甘肃省森林病害防治检疫站,甘肃,兰州,730050 [4]甘肃省天祝藏族自治县林业局,甘肃,天祝,733200

出　　处：《北华大学学报（自然科学版）》2001年第1期74-79,共6页Journal of Beihua University（Natural Science）

基　　金：甘肃省科委“九五”科技攻关项目!(GK95 1 2 48A)

摘　　要：采集鉴定出青海云杉(Picea crassifolia kom.)母树林害虫天敌昆虫135种,其中寄生性昆虫54种,捕食性昆虫81种.查到天敌昆虫甘肃省内新记录65种.查清了主要害虫的主要天敌种类和种实害虫优势种云杉球果小卷蛾的寄生蜂14种,总寄生率10%～60%,主要为曲姬蜂、马尾姬蜂和球果平胸姬小蜂3种.在结实大年结合采种收集球果,于结实小年释放寄生蜂可提高害虫的天敌寄生率36.5%～38.2%,降低虫果率55.1%.species of natural enemies of the insect pests in the seed stands of Picea crassifolia in Qinghai Province are collected and identified,including 54 species of parasitic insects and 81 predatory insects. The important species of the natural enemies of the important pests and the 14 species of the parasite of Pseudotomides strobilellus are found. The total parasitic rate is 10%～60% including Svcambus sp. Megashyssa sp. and Hyssopus nigsitulus.Collecting the damaged seed cones in the year of bumper harvest and releasing parasite wasp in the year of poor harvest can increase the parasitic rate to 36.5%～38.2% and decrease the rate of damaged seed cones to 55.1%.

关 键 词：青海云杉 母树林 害虫 天敌资源 保护利用 

分 类 号：S763.306.4[农业科学—森林保护学] S763.711.8[农业科学—林学]