| 摘要: |
| 松黄叶蜂在陕西主要为害油松，1年1代，以卵在油松针叶上越冬。翌年4月中、下旬幼虫孵化，5月上、中旬为幼虫危害盛期，以预蛹在地面枯枝落叶层中越夏，有滞育现象。在郁闭度较小的中、幼林中发生危害严重。新发现5种茧期寄生蜂，即尖胸青蜂、翠金小蜂、邻凹姬蜂、恩姬蜂和田猎姬蜂，茧期寄生率高达40%，且以前两种为优势种。加上捕食性天敌、病原微生物，对松黄叶蜂茧的致死率为48.7%～64.0%。用1.5%甲敌粉粉剂，3.75 kg/hm。 |
| 关键词: 松黄叶蜂 生物学 天敌 防治 |
| DOI： |
| 分类号:Q554 |
| 基金项目:陕西省科技攻关项目(91K09-G2) |
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| Biology and control of Neodiprion sertifer (Geoffroy) |
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TANG Li,XUE Quan hong,TANG Li,XUE Quan hong,TANG Li,XUE Quan hong
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| Abstract: |
| The sawfly occurs one generation a year in Shaanxi,and overwinters in the needle of Chinese pine,Pinus tablaeformis,by means of eggs.Egg hatch in the middle and late April of next year.The peak stage of larvage damage to Chinese pine is in early and middle May,and prepupa or sixth larvae in cocoon oversummers in litter,and sometimes diapause in the cocoon.The sawfly is a kind of intolerant insect species,and seriously damages in the middle and young plantaion of small crown density,5 newly-found species of parasity,Cleptes sp.(Chrysididae),Tritheptis sp.(Ptzromalidae),Lathrolestes sp.,Endays sp.and Agrothereus sp.(Ichneumonidae),and Cleptes sp.and Tritneptis sp.are dominant.The parasite rate to cocoon reaches 40%.Parasite rate and predator rate to cocoon of the sawfly and pathogenic microoganism can reach 48.7%-64%.1.5% of Dalf and Dyles(Parathion methyl and Trichlorfan) dust is used to controa larvae of the sawfly.3.75 kg/hm2 of the dust control reaches more than 95%. |
| Key words: Neodiprion sertifer (Geoffroy.) biological characteristic predator control |
