红脂大小蠹及油松挥发物对捕食性天敌寄主选择行为的影响  

Effect of Volatiles from Dendroctonus valens and Pinus tabulaeformis on the Behavioral Selection of Natural Enemy

作　　者：张咏洁[1] 张培毅[2] 刘君[2] 金幼菊[1] 张真[2] 

机构地区：[1]北京林业大学生物科学与技术学院,北京100083 [2]中国林业科学研究院森林生态环境与保护研究所国家林业局森林保护学重点实验室,北京100091

出　　处：《林业科学研究》2008年第2期258-261,共4页Forest Research

基　　金：国家重点基础研究发展计划(973计划)“农林生态系统对危险生物入侵的抵御机制”(2002CB111404);“十一五”林业科技支撑计划(2006BAD08A192)

摘　　要：利用树木解剖及昆虫饲养选择的方法调查红脂大小蠹的捕食性天敌,发现一种鞘翅目颚甲科的昆虫为红脂大小蠹的天敌。利用Y-型嗅觉仪进一步研究发现健康油松挥发物、虫害油松挥发物及虫粪挥发物对该天敌昆虫都有显著的引诱作用,尤其对虫害油松挥发物趋向行为更强烈。该天敌昆虫在栖境定位和寄主选择过程中所利用的挥发物主要来自上述3类挥发物。4种单萜烯化合物对此种天敌昆虫的室内引诱实验发现,(S)-(+)-3-蒈烯对天敌的引诱作用较为强烈。The predators of Red turpentine beetle(RTB),Dendroctonus valens were investigated by the method of anatomizing of the pine trunk and rearing choice test.One of predator species of RTB(Prostomis sp.) was found in the larval gallery.Behavioral response of this natural enemy to the volatiles emitted from healthy pines(Pinus tabulaeformis),RTB damaged pines and fecal pellets of RTB were studied with a Y-tube olfactometer.The results showed that natural enemies were attracted to all the volatiles above,especiall...

关 键 词：颚甲科天敌 红脂大小蠹 油松 挥发物 行为反应 

分 类 号：S769[农业科学—森林保护学]