桔小实蝇作为哈氏肿腿蜂新寄主适生性的初步检测  

Preliminary Testing on the Suitability of Bactrocera dorsalis(Diptera:Tephritidae) as a New Host of Sclerodermus harmandi(Hymenoptera:Bethylidae)

作　　者：ONG Su Ping 袁瑞玲 陈鹏 ONG Su Ping;YUAN Rui-ling;CHEN Peng(Yunnan Academy of Forestry and Grassland,Kunming Yunnan 650201,P.R.China;Forest Research Institute Malaysia(FRIM),Selangor Kepong 52109,Malaysia)

机构地区：[1]云南省林业和草原科学院,云南昆明650201 [2]马来西亚林业研究所,吉隆坡雪兰莪州52109

出　　处：《西部林业科学》2022年第5期159-163,共5页Journal of West China Forestry Science

基　　金：云南省2021年度专家基层科研工作站(勐腊县)项目;国家自然科学基金(31660208,31160162)。

摘　　要：桔小实蝇是一种世界范围内广泛分布的重要检疫性果蔬害虫,也是云南重要的入侵害虫,因其世代时间短,寄主广泛,且对热带和亚热带气候的适应性强,防控非常困难。利用寄生天敌能够长期持续地控制桔小实蝇于较低的种群水平。选取3龄实蝇幼虫和2日龄蛹,按3︰5的蜂︰虫比进行试验,测试了桔小实蝇幼虫和蛹作为哈氏肿腿蜂寄主的适生性。结果显示:肿腿蜂不攻击实蝇蛹,但可以攻击实蝇幼虫,在其身体上产卵,并造成实蝇幼虫死亡;试验共获得97粒蜂卵,其中53粒卵成功孵化,但肿腿蜂幼虫存活时间仅为2~8 d。研究显示,肿腿蜂能攻击实蝇并产卵,但其幼虫未能持续发育完成世代,即哈氏肿腿蜂可以用于防控桔小实蝇,但桔小实蝇不是哈氏肿腿蜂的最佳适生寄主。Bactrocera dorsalis is a damaging pest on a wide range of agricultural produce worldwide including China.Given its short generation time and high adaptability to the tropical and sub-tropical climates,B.dorsalis has become invasive and widespread in Yunnan Province,China.Biological control using parasitoids offers a viable,long-term solution to suppress the population of B.dorsalis.In this experiment,we tested the suitability of B.dorsalis larvae and pupae as a host of the bethylid parasitoid,Sclerodermus harmandi.Results showed that the wasps did not attack the pupa while attack and oviposition were observed on the 3 rd instar larvae.A total of 180 wasps were tested on 300 B.dorsalis larvae at a ratio of 3 wasps:5 larvae in 6 different treatments.We obtained 97 eggs in which 53 hatched into larvae,nevertheless their survival only lasted 2-8 days.In conclusion,although S.harmandi wasps were able to attack and oviposit on the B.dorsalis larval host,the wasps’larvae could not develop successfully on the new host.Therefore,S.harmandi wasps could kill B.dorsalis larvae,but the fruit fly was not a suitable host for S.harmandi wasps.

关 键 词：桔小实蝇 哈氏肿腿蜂 寄主 适生性 

分 类 号：S763[农业科学—森林保护学]