寄生性天敌蒲螨对几种蛀干害虫的控制作用  

Control of Stem Borers by a Parasitoid,Pyemotes trittci Lagreze-Fossot & Montane

作　　者：张佐双[1] 熊德平[1] 程炜[1] 

机构地区：[1]北京植物园,北京100093

出　　处：《中国生物防治》2008年第1期1-6,共6页Chinese Journal of Biological Control

摘　　要：研究了天敌蒲螨对蛀干害虫——双条杉天牛、柏肤小蠹、日本双棘长蠹、六星黑点豹蠹蛾的寄生效果。室内结果表明,以上几种幼虫接种蒲螨后,在8h内可以导致所有幼虫死亡。室外采用淹没式释放方式,按照树胸径释放蒲螨(20 000头/cm)。释放后30d调查,对双条杉天牛幼虫、柏肤小蠹幼虫、双棘长蠹幼虫、六星黑点豹蠹蛾幼虫的校正寄生死亡率分别为84.7%、67.3%、67.8%和60.5%。Parasitism rates of cryptic insect pests, Semanotus bifasciatus （Motschulsky）, Phloeosinus aubei Perris, Sinoxylon japonicus Lesne, Zeuzera leuconotum Butler by Pyemotes trittci Lagreze-Fossot and Montane were investigated. Larvae of the insect pests died within 8 h after being exposed to P. trittci in the laboratory. And in the wild by inundative release at the rate of 20 000 per cm of tree chest diameter, 30 d after release, corrected parasitism rates of S. bifasciatus, P. aubei, S. japonicus, Z. leuconolum reached 84.7 %, 67.3 %, 67.8 % and 60.5 %, respectively.

关 键 词：天敌 蒲螨 蛀干害虫 双条杉天牛 柏肤小蠹 日本双棘长蠹 六星黑点豹蠹蛾 

分 类 号：S476.3[农业科学—农业昆虫与害虫防治]