松黄叶蜂生物学及防治研究  

Biology and control of Neodiprion sertifer (Geoffroy)

作　　者：李新岗[1] 周书俭 王鸿哲[1] 孙文杰[1] 

机构地区：[1]西北农林科技大学林科院,陕西杨陵712100 [2]陕西省商洛地区森防站,陕西商州726000

出　　处：《西北农业大学学报》2001年第1期84-87,共4页Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)

基　　金：陕西省科技攻关项目! (91K0 9-G2 )

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%～ 6 4.0 %。用 1.5 %甲敌粉粉剂 ,3.75 kg/ hm2 防治叶蜂幼虫 ,防治效果可达 95The 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 larvae 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 plantation of small crown density.5 newly found species of parasite, 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 Dylex (Parathion methyl and Trichlorfan) dust is used to control larvae of the sawfly.3.75 kg/hm 2 of the dust control reaches more than 95%.

关 键 词：松黄叶蜂 生物学 天敌 防治 松树害虫 

分 类 号：S763.430.1[农业科学—森林保护学]