宁夏六盘山落叶松红腹叶蜂的寄生性天敌资源调查  

Investigation on Parasitoids of Pristiphora erichsonii in Liupanshan of Ningxia

作　　者：夏固成 孙普 刘浩[3] 程晓福 兰菊梅 宝山 

机构地区：[1]宁夏回族自治区固原市六盘山林业局,宁夏固原756401 [2]宁夏森林病虫防治检疫总站,宁夏银川750004 [3]宁夏农林科学院植物保护研究所,宁夏银川750002

出　　处：《贵州农业科学》2012年第7期115-119,共5页Guizhou Agricultural Sciences

基　　金：中央财政林业科技推广示范项目"宁夏六盘山华北落叶松人工林近自然化改造技术推广示范"[(2011)TK120];宁夏自然科学基金项目(NZ1130)

摘　　要：为了探明宁夏六盘山国家级自然保护区落叶松红腹叶蜂的寄生性天敌资源,筛选能有效控制落叶松红腹叶蜂的优势天敌,采用定点调查方法对该害虫的寄生性天敌资源进行了调查。结果表明:1)落叶松红腹叶蜂害虫的寄生性天敌有六盘山翠金小蜂(Tritneptis sp.)、毛瘤角姬蜂〔Pleolophus setiferae(Uchida)〕、恩姬蜂(Endasys sp.)、大田猎姬蜂〔Agrothereutes macroincubitor(Uchida)〕、短翅田猎姬蜂〔Agrothereutes abbreviatus(Fabricius)〕、选择盆地寄蝇(Bessa selecta fugax Rondani)、球孢白僵菌(Beau-veria bassiana Vuillemin)和苏云金杆菌(Bacillus thuringiensis)共8种,其中,六盘山翠金小蜂为该害虫的优势种天敌。2)当落叶松红腹叶蜂害虫大面积暴发时,天敌的种群数量迅速上升,随着害虫种群数量的降低,天敌种群数量也减少。说明,天敌是该害虫发生的主要制约因子,而且其高峰期滞后于害虫。3)对主要天敌的生物学特性进行了描述。To explore the parasitoid sources of P. erichsonii in Liupanshan National Nature Reserve and screen the dominant parasitoid that could effectively control the pest, the dominant parasitoid sources of P. erichsonii were studied by sentinel survey. The results showed that. 1） The parasitoids of P. erichsonii were the following eight kinds： Tritneptis sp., P. setiferae, Endasys sp., A. macroincubitor, A. abbreviatus, B. seZecta fugax, B. bassiana and B. thuringiensis. Among which, Tritneptis sp. was the dominant parasitoid of the pests. 2） When the large outbreak of P. erichsonii occurred, the populations of the parasitoid increased rapidly. With the reduction of pest populations, the parasitoid population reduced as well. This indicated that the parasitoid of insect pests was the major limiting factor and its peak lags behind the pests. 3） The biological characteristics of the main parasitoid were described.

关 键 词：落叶松红腹叶蜂 寄生性天敌 金小蜂 寄蝇 六盘山 宁夏 

分 类 号：S476.3[农业科学—农业昆虫与害虫防治]