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河南省漯河地区黏虫幼虫寄生性天敌种类记述

2020-06-08陈琦张运栋侯艳红段云范志业沈海龙刘迪陈莉李世民

植物保护 2020年3期

陈琦 张运栋 侯艳红 段云 范志业 沈海龙 刘迪 陈莉 李世民

摘要 为了解河南省漯河地区小麦田、玉米田黏虫Mythimna separata幼虫的寄生性天敌种类及寄生情况,为黏虫的可持续防控提供科学依据。于2015年-2017年在河南省漯河地区采集小麦田一代和玉米田二代黏虫幼虫,带回室内饲养,对饲养期间出现的寄生性天敌进行种类鉴定。共发现黏虫幼虫寄生性天敌5种:黏虫盘绒茧蜂Cotesia kariyai、螟蛉盘绒茧蜂C.ruficrus、棉铃虫齿唇姬蜂Campoletis chlorideae Uchida、盘背菱室姬蜂Mesochorus discitergus和中华卵索线虫Ovomermis sinensis。麦田一代黏虫寄生天敌主要为中华卵索线虫,夏玉米田二代黏虫主要为寄生蜂类天敌,优势种为黏虫盘绒茧蜂和螟蛉盘绒茧蜂。

关键词 黏虫幼虫; 寄生性天敌; 种类; 漯河地区

中图分类号: S 433.4; S 435.122+.9; S 435.132

文献标识码: A

DOI: 10.16688/j.zwbh.2019117

The note of parasitic species of Mythimna separata

(Walker) larva in Luohe area of Henan province

CHEN Qi1, ZHANG Yundong1, HOU Yanhong1, DUAN Yun2, FAN Zhiye1,

SHEN Hailong1, LIU Di1, CHEN Li1, LI Shimin1

(1. Luohe Academy of Agricultural Sciences, National Agricultural Observing and Experimental Station for Plant

Protection in Yancheng, Luohe 462300, China; 2. Institute of Plant Protection, Henan Academy

of Agricultural Sciences, Zhengzhou 450002, China)

Abstract

For the sustainable control of Mythimna separata, the species of parasitic natural enemies were investigated in wheat and corn fields in Luohe area of Henan province. In 20152017, the larvae from wheat and corn fields were collected and reared in laboratory. Species of parasitic natural enemies were identified when they emerged. Five species of parasitic natural enemies of armyworm larvae were found in wheat and corn fields in Luohe area of Henan province, including Cotesia kariyai, C.ruficrus, Campoletis chlorideae, Mesochorus discitergus and Ovomermis sinensis. Parasitic wasps are the main parasitic natural enemies of the 2nd generation of armyworm in summer corn fields in central Henan province, and C.kariyai and C.ruficrus is the dominant species. O.sinensis is main species in wheat field.

Key words

Mythimna separata larva; parasitic natural enemy; species; Luohe area

黏蟲Mythimna separata(Walker)(又称东方黏虫)是我国主要粮食作物重大迁飞性害虫[12]。近年来,随着全球气候变化和我国农作物种植结构调整,黏虫在我国的发生为害呈现出一些新的特点并呈加重之势[25],特别是2012年以来黏虫在东北、华北、黄淮、西南等地区突发重发,对农业生产造成了严重影响[610]。

天敌在控制黏虫为害,抑制种群数量上起着十分重要的作用[1114]。不同地区间黏虫天敌的种类、优势种因气候、农业种植结构的不同而有较大差异,早在20世纪80年代鲁信纯等[15]和杨光安等[16]分别对贵州毕节和吉林省的黏虫天敌昆虫资源进行了调查,近期黄芊等[17]对广西稻田黏虫寄生性天敌昆虫发生种类进行了调查。李继培等[18]对河南省中、南部小麦田寄生一代黏虫的优势天敌-索线虫的生活习性,及其对黏虫的抑制作用进行了初步调查研究。……

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