木薯单爪螨的寄主选择性研究  

Preliminary Study on the Host Selectivity of Mononychellus mcgregori(Acari:Tetranychidae)

作　　者：经福林[1,2] 李迁[1,2] 卢芙萍[2] 卢辉[2] 徐雪莲[2] 陈青[1,2] 张会英[1,2] 

机构地区：[1]海南大学环境与植物保护学院,海南海口570228 [2]中国热带农业科学院环境与植物保护研究所农业部热带作物有害生物综合治理重点实验室海南省热带作物病虫害生物防治工程技术研究中心海南省热带农业有害生物监测与控制重点实验室,海南海口571101

出　　处：《热带作物学报》2013年第2期344-347,共4页Chinese Journal of Tropical Crops

基　　金：国家木薯产业技术体系害虫防控岗位专家项目(No.CARS-12-hncq);中央级公益性科研院所基本科研业务费专项"橡胶树重要害螨生态适应性及风险预警研究"(No.1630022013008);海南大学‘211工程’建设项目

摘　　要：在温度(25±2)℃、RH(75±5)%、光照周期14(L)∶10(D)的条件下,研究以木薯(Manihot esculenta)、橡胶(Hevea auyanensis)、木瓜(Chaenomeles sinensis)、变叶木(Codiaeum variegatum)和芒果(Mangifera indica)5种植物叶片饲养木薯单爪螨(Mononychellus mcgregori)对其生长发育及繁殖的影响。结果表明:不同植物对木薯单爪螨生长发育及繁殖存在显著影响。木薯单爪螨取食木薯和橡胶叶片能完成世代发育,以木薯饲养,其F0代发育历期8.10 d,F1代发育历期8.45 d;以橡胶饲养,其F0代发育历期8.45 d,F1代发育历期10.95 d。木薯单爪螨取食木瓜、变叶木和杧果新鲜叶片不能完成世代发育,F0代仅发育至幼螨期,分别为3.70、1.80和1.60 d;后代性比以木薯最大,F0和F1代分别为80.80%和88.50%,橡胶分别为80.20%和80.60%。木薯单爪螨在不同寄主上的单雌产卵量以橡胶最高,F0和F1代分别为25.8和29.8粒,木薯次之,分别为18.6和26.2粒,在木瓜、变叶木和芒果上只有木薯单爪螨F0代产卵,分别为1.2、0.98和0.6粒;成螨寿命以橡胶上成活最长,F0和F1代分别为19和20 d,木薯分别为17和18 d居次;在木瓜、变叶木和芒果上,木薯单爪螨成螨仅分别成活5.5、5和5 d。综上所述,木薯单爪螨不仅对木薯产生危害,且极有可能转移为害热带经济作物橡胶,对橡胶产业的发展存在一定的安全隐患。The effect of the host plants on the development and reproduction of Mononychellus mcgregor/ were observed via rearing the mites on 5 host plants including Manihot esculenta, Hevea auyanensis, Chaenomeles sinensis, Codiaeum var/egatum and Mangifera indica at a constant temperature of 25℃ in the laboratory. The results showed that, host plants had significant effect on the growth and the reproduction of M. mcgregor/. M. mcgregor/ feeding on M. esculenta, H. auyanensisleaves and H. auyanens/s leaves could fulfill normal development, and the F0 generation of M. mcgregor/feeding on M. esculenta leaves and H. auyanens/s leaves was 8.10 d and 8.45 d, respectively, the F1 generation was 8.45 and 10.95 d, respectively. But the mites feeding on C. variegatum, C. sinensis and M. ind/cato could not survive completely and the 170 generation developed only to the larvae period, they was 3.70, 1.80 and 1.60 d, respectively. The offspring-female rate of the mites feeding on M. esculenta leaves was the highest in different host plants, the F0 and F, was 80.80% and 88.50% ; the second was H. auyanensis, the Fo and F1 was 80.20% and 80.＇60%. The egg production of a female of M. mcgregor/ Fo and F1 were all the most on H. auyanens/s leaves and they was 25.8 and 29.8 eggs, the mites which was on M. esculenta leaves were the second most numbers and they was 18.6 and 26.2 eggs. There was only 170 generation to lay eggs on C. sinensis, C. variegatum and M. indica leaves, and the egg numbers was 1.2, 0.98 and 0.6, respectively. Theaverage longevity of adults was the longest on H. auyanensis leaves, and the Fo and F1 were 19 and 20 d, the adults that was on M. esculenta were similar to H. auyanens/s, the F0 and F1 was 17 and 18 d. compared with M. esculenta and H. auyonensis. The mites only survived in fewer days on C. sinensis, C. variegatum and M. indica leaves, they was 5.5, 5 and 5 d, respectively. The results above suggested that M. mcgregori are most likely to transfer the harm into rubber（Hevea auyanensis）. It is a big ris

关 键 词：木薯单爪螨 寄主选择性 发育与繁殖 

分 类 号：S435.33[农业科学—农业昆虫与害虫防治]