松阿扁叶蜂虫龄和虫口密度对油松松针的影响  

Effect of Age and Population Density of Acantholyda Posticalis Matsumura on Pinus Tabuliformis

作　　者：唐增海 Tang Zenghai(Shanxi Province Poplar High-yield Forest Bureau of Sanggan River,Huairen 038302,CAina)

机构地区：[1]山西省桑干河杨树丰产林实验局,山西大同037006

出　　处：《山西林业科技》2020年第1期35-36,49,共3页Shanxi Forestry Science and Technology

摘　　要：松阿扁叶蜂是我国林业的主要害虫之一,严重危害油松、樟子松。本试验采用室内饲养法,在实验室从卵开始饲养各个虫态的松阿扁叶蜂幼虫,分析不同虫口密度下各虫龄幼虫对松针的危害状况。试验结果表明,松阿扁叶蜂在3龄前食量较小,3龄和4龄阶段是快速生长期,也是危害油松高峰期。在3龄前进行防治,可以取得较高的防治效果。Acantholyda posticalis Matsumura is one of the main forest pests in China,which is harmful to Pinus tabuliformis and Pinus sylvestris.The larvae of Acantholyda posticalis Matsumura in various insect forms were raised from eggs in the laboratory to analysis the dynamic damage of Pinus tabuliformis by different age under different population density.Results showed that Acantholyda posticalis Matsumura ate less before 3rd instar.It fast growth stage was 3rd instar and 4th instar,and it was also the peak period of harming Pinus tabuliformis.High control efficiency of Acantholyda posticalis Matsumura could be achieved by controlling before 3rd instar.

关 键 词：松阿扁叶蜂 虫龄 虫口密度 防治效果 

分 类 号：S763.3[农业科学—森林保护学]