橡胶白粉病病菌天敌--二斑素瓢虫生物学特性研究初报  

A preliminary report on the biological characteristics of Illeis bistigmosa-a natural enemy of Oidium heveae

作　　者：朱国渊 张永科[1] 段波[1] 吴忠华[1] 王进强[1] 许丽月[1] Zhu Guoyuan;Zhang Yongke;Duan Bo;Wu Zhonghua;Wang Jinqiang;Xu Liyue(Yunnan Institute of Tropical Crops,Yunnan Jinghong 666100)

机构地区：[1]云南省热带作物科学研究所,云南景洪666100

出　　处：《中国植保导刊》2020年第2期49-53,共5页China Plant Protection

基　　金：云南省应用基础研究计划青年项目(2017FD033);云南农垦热带作物病虫害监测与防治(151821301082352710-01);“云岭产业技术领军人才”培养计划([2014]1782号);云南省热带作物科技创新体系建设项目(516-8)。

摘　　要：为明确二斑素瓢虫的主要生物学特性及对橡胶树白粉病菌的取食作用,2015-2018年开展了二斑素瓢虫室内饲养及野外调查研究。结果表明,二斑素瓢虫在云南省大部分植胶区均有分布,周年发生。室内培养气温(26±1)℃、相对湿度(75±5)%,光周期L∶D=12∶12条件下,完成一个世代需19~24 d;成、幼虫均可取食橡胶树白粉病菌。每头4龄幼虫每日可取食8.05~8.34 cm^2的白粉菌层。本研究结果为进一步保护、利用二斑素瓢虫控制橡胶白粉病提供重要参考。In order to understand the biological characteristics of I lleis bistigmosa and its feeding behavior on Oidium heveae,laboratory rearing and field investigation were carried out from 2015 to 2018.The results showed that I.bistigmosa was distributed in most of the rubber tree plantations in Yunnan Province and occurred annually.Under the conditions of air temperature(26±1)°C,relative humidity(75±5)%and photoperiod L∶D=12∶12,it took 19~24 days for I.bistigmosa to complete one generation.Both the adult and larva of I.bistigmosa can feed on O.heveae,and each 4 thinstar larva can feed on 8.05~8.34 cm^2 of O.heveae layer per day.The above results provided an important reference for further protection and utilization of I.bistigmosa on the control of rubber powdery mildew.

关 键 词：二斑素瓢虫 橡胶树 白粉病 生物学 

分 类 号：S476[农业科学—农业昆虫与害虫防治]