低温诱导赤眼蜂滞育与寄主的关系  

TRICHOGRAMMA SPP DIAPAUSE INDUCED BY LOW TEMPERATURE RELATION TO HOSTS

作　　者：李丽英[1] 朱涤芳[1] 陈巧贤[1] 张敏玲[1] 弗.阿.希略赫基契 阿.莫.格林别尔格 

机构地区：[1]广东省昆虫研究所 [2]原苏联农科院生防研究所

出　　处：《昆虫天敌》1992年第3期117-125,共9页Natural Enemies of Insects

基　　金：国家自然科学基金项目3880126号

摘　　要：为防治农林害虫而需要大量繁殖赤眼蜂时,蜂种的长期贮存是重要的环节,而只有处于稳定滞育状态的个体才能经长期冷藏后再受复苏处理而不失其活力。我们采用希略赫基契诱导广赤眼蜂 Trichogromma evanescens 滞育及快速检验滞育稳定与否的方法,对我国四种赤眼蜂进行的试验表明:寄生于不同寄主的不同赤眼蜂种类受滞育诱导的反应是不同的,只有寄生于麦蛾卵内的稻螟赤眼蜂 T.japonicum、亚洲玉米螟赤眼蜂 T.ostriniae 和松毛虫赤眼蜂 T.dendrolimi 在蜂幼虫末期分别受恒温8.10℃,8℃,8.10℃处理30天可获得相应为81.2～89.5%,63.8%,96.9～97.9%的滞育预蛹;它们在米蛾卵内或松毛虫赤眼蜂在柞蚕卵内均无高于50%的滞育预蛹;而拟澳洲赤眼蜂 T.confusum 在上述三种寄主卵内能受诱导而进入滞育的预蛹比例极低(0～40.9%)。此类与寄主有关的滞育研究尚属首次。The stable diapause of Trichogramma is the main condition for its long-term storage,a very important procedure in mass production and utilization of Tricho- gramma for biological control of agricultural and forestrial insect pests.Our expe- riments showed that the higher percentage(50—100%)of prepupal dormancy of Trichogramma spp.occurred when they were treated for 30 days at the end of (?)arval stage with the following regime: For T.japonicum:Under 8,10,12℃ in the eggs of Sitotroga cerealella & Corcyra cephalonica.But the diapause was stable only in the eggs of S.cerealella under 8 ℃ and 10℃. For T.ostriniae:Under 8℃ in the eggs of S.cerealella & C.cephalonica and under 10℃ in the eggs of C.caphalonica.But the stable diapause happened only in the eggs of S.cercalella under 8℃. For T.dendrolimi:Under 8,10℃ in the eggs of S.cerealella,C.cephalonica & Antheraea pernyi.But only in the eggs of S.cerealella under 8,10℃ the diapanse was stable. For T.confusum:Under 8℃ in the eggs of C.cephalonica & Antheraea pernyi or under 10℃ in tne eggs fo A.pernyi.But non-stable diapause was obtained.

关 键 词：诱导滞育 寄主 赤眼蜂 温度 

分 类 号：S476.3[农业科学—农业昆虫与害虫防治]