摘要
[目的]通过对乌鲁木齐市及其周边地区柳树食叶害虫及寄生蜂资源初步调查研究,为柳树食叶害虫的生物防治提供参考依据。[方法]在乌鲁木齐及其周边柳树上,柳树害虫大暴发大泛滥时期,进行网扫并且徒手采集柳树害虫各龄期标本及寄生蜂标本,将其带回实验室进行鉴定、分组解剖、饲养。[结果]发现了5种主要柳树害虫,其中杨毛臀萤叶甲的危害最严重;其次是柳虫瘿叶蜂;再次是叶蝉,数量较多,但危害程度不是很明显;而柳蚜和斑潜蝇,数量较少,危害程度也较小;同时发现了693只寄生蜂,隶属于11科。其中数量和种类繁多的类群依次为姬小蜂科、细蜂科和蚜茧蜂科。[结论]通过在柳树食叶害虫暴发期间调查,发现的5种主要柳树害虫在危害程度上虽有差异,均未造成柳树死亡的现象,但对柳树的正常生长和园林景观效果带来了严重危害,需要对其进行及时防治;同时发现柳树害虫的寄生蜂资源丰富,这为今后利用寄生性天敌防治害虫提供了广阔前景。
[Objective]The purpose of this project was to provide reference for biological control of the leaf - eating pests of willow by conducting a preliminary investigation of the pests and their parasitic wasps in Urumqi and its surroundings.[Method]Different ages of willow - pests were collected both by hands and sweeping during its large outbreak in Urumqi and its surroundings and were taken back to the laboratory for observation,identification and dissection everyday.[Result]Five species of leaf - eating pests of willow and 693 specimens of parasitic wasps belonging to eleven families were found and deposited in the laboratory.The most serious harm to willow was Agelastica alni orientalis Baly,and then was Pontania dolichura Thomson,the third was Cicadella sp.;the least harm were Aphis farinose Gmelia and Liriomyza sp..The order of species and number of parasitic wasps was Eulophidae,Serphidae and Aphidiidae.[Conclusion]Five willow - pests had different degrees of damage to the willow and none of them resulted to death.However,they have done willow serious harm,affecting the normal growth and damaging the landscape,These pests have to be controlled in time.On the other hand,the fact that many parasitoids of willow leaf - eating pests were found during their large outbreak revealed that there were rich resources of parasitoids on willows,which provided a broad prospect for the biological control of the willow - pests utilizing parasitic natural enemies in the future.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2012年第7期1229-1237,共9页
Xinjiang Agricultural Sciences
基金
新疆维吾尔自治区自然科学基金项目"新疆叶蝉类害虫卵寄生小蜂资源调查及其寄生生物学研究"(2011211A004)
国家大学生创新实验项目"杨树萤叶甲寄生性天敌昆虫资源调查研究"(101075519)
关键词
柳树食叶害虫
寄生蜂
生物防治
乌鲁木齐及其周边地区
leaf - eating pests of willow
parasitic wasps
biological control
Urumqi and its surroundings
