麦蛾柔茧蜂防控二化螟潜能评估  

Evaluation on the potential of Habrobracon hebetor to control Chilo suppressalis

作　　者：吴玉新 闫三强 吕宝乾 唐继洪 周晓娟 宋瑶瑶 王重添 Wu Yuxin;Yan Sanqiang;Lyu Baoqian;Tang Jihong;Zhou Xiaojuan;Song Yaoyao;Wang Chongtian(School of Tropical Agriculture and Forestry,Hainan University,Danzhou Hainan 571700,China;Sanya Research Institute,Chinese Academy of Tropical Agriculture Sciences/Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in the Off-Season Reproduction Regions,Sanya Hainan 572025,China;Sanya Longhua Ecological Agriculture Technology Co,Ltd.Sanya Hainan 572000,China)

机构地区：[1]海南大学热带农林学院,海南詹州571700 [2]中国热带农业科学院三亚研究院/海南省南繁生物安全与分子育种重点实验室,海南三亚572025 [3]三亚隆华生态农业科技有限公司,海南三亚572000

出　　处：《中国植保导刊》2024年第6期51-55,共5页China Plant Protection

基　　金：国家自然科学基金(32360703);三亚崖州湾科技城科技专项资助(SCKJ-JYRC-2022-77);海南省重大科技计划项目(ZDKJ202002)。

摘　　要：二化螟是为害我国水稻的常发性害虫,而麦蛾柔茧蜂是多种鳞翅目幼虫的寄生性天敌,为评估麦蛾柔茧蜂对二化螟的防控潜能,研究了该蜂对寄主二化螟的麻痹功能反应,在寄主上的发育、存活、寿命、繁殖情况以及麻痹寄主数量。结果表明,在20~34℃范围内,麦蛾柔茧蜂对二化螟幼虫具有麻痹致死作用,并可在寄主上完成生活史;34℃会抑制该蜂麻痹寄主的能力,表现为瞬时攻击率和理论日最大麻痹值的下降,以及处理时间的上升。在26℃下寄生,该蜂的成虫前期存活率、繁殖力和麻痹寄主数量均为最高,分别为72.22%、205.54头和184.33头。本研究结果证实了麦蛾柔茧蜂防控二化螟的应用潜力。Chilo suppressalis is a common pest that causes significant damage to rice crops in China.Habrobracon hebetor is a parasitic natural enemy of various lepidopteran larvae.In order to evaluate the potential of H.hebetor as a control agent for C.suppressalis,a series of experiments were conducted to assess the functional response of this parasitoid to C.suppressalis,and its development,survival,longevity,reproduction on the host,as well as the number of paralyzed hosts.The results showed that the H.hebetor exhibited a paralytic lethal effect on C.suppressalis larvae at temparatures ranging from 20~34 C.Furthermore,the parasitoid was capable for completing its life cycle on the host.The capacity of H.hebetor to paralyze the hosts was inhibited at 34 C,as evidenced by a decline in the instantaneous attack rate and the theoretical daily maximum paralysis value,in addition to an increase in the treatment time.The pre-adult survival rate,fecundity,and the number of paralyzed hosts at 26℃ were the highest,with values of 72.22%,205.54,and 184.33,respectively.The findings of this research have significant implications for the control of C.suppressalis with H.hebetor.

关 键 词：二化螟 麦蛾柔茧蜂 温度 功能反应 生活史 

分 类 号：S435.112.1[农业科学—农业昆虫与害虫防治]