针叶小爪螨在四种寄主植物上的生物学特性差异  

Difference of bionomics of Oligonychus ununguis in four different host plants

作　　者：刘学辉[1] 孟庆英[1] 李中新[1] 刘学峰 孙绪艮[1] 

机构地区：[1]山东农业大学植物保护学院,山东泰安271000 [2]山东省小协镇人民政府,山东泰安271219

出　　处：《中国森林病虫》2007年第1期15-17,共3页Forest Pest and Disease

摘　　要：利用海绵水盘法饲养针叶小爪螨Oligonychus ununguis(Jacobi),观察其在板栗、麻栎、栓皮栎、槲树上的生长发育状况。结果表明,不同寄主种群的针叶小爪螨相互改变寄主植物后,均能正常生长发育到成螨,但存在着不同程度的差异。接种到槲树叶片上单头饲养,与其他3种寄主植物相比,幼、若螨死亡率较高,均在47%以上;幼螨发育为成螨比率较低,均在53%以下。在群体饲养中,板栗和槲树寄主种群相互改变寄主植物后,生长发育历期均有显著的延长,而栓皮栎寄主种群在板栗上的生长发育历期也有极显著的延长。在槲树上生长发育的雌成螨单雌日均产卵量较低,寿命最短。Development of Oligonychus ununguis feeding on leaves of Castanea mollissima, Quercus acutissirna, Q. variahilis and Q. dentata was observed with leaf disk rearing method. The result showed Oligonbehus ununguis populations in different hosts could develop into adults after they exchange their host plants, but the bionomics were different. Compared with the mites in the other three hosts, the mortality of the mites moved to Quercus dentata in the period from larva to nymph was higher （more than 47 % ） and the rate of adult developed from the larva was lower （less than 53 % ）. When the mites in primary leaves of Castanaea mollissima and Quercus dentata exchanged their hosts, their development periods were obviously prolonged. So were the development periods of the mites in Castanaea mollissima moved from primary leaves of Quercus dentata and the mites in Quercus dentata moved from the primary leaves of Quercus variabilis. Compared with the mites in the other three hosts, the female adults in Quercus dentata had lower oviposition amount per day and the shortest longevity.

关 键 词：针叶小爪螨 寄主植物 生物学特性 发育历期 

分 类 号：S763.46[农业科学—森林保护学]