河南省漯河地区黏虫幼虫寄生性天敌种类记述

The note of parasitic species of Mythimna separata (Walker) larva in Luohe area of Henan province

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。

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 2015-2017, 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 2 nd 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.