南靖县草地贪夜蛾发生动态调查初报

为了明确南靖县草地贪夜蛾种群发生情况和和规律,2019年10月至12月,对南靖县进行草地贪夜蛾发生情况监测,其中对靖城镇、金山镇、和溪镇、船场镇、梅林镇的草地贪夜蛾发生情况进行了调查,结果表明：草地贪夜蛾下半年总共发生两个高峰,最高诱蛾量在11月11日,以玉米、茄子和辣椒上成虫发生数量较多,玉米最多；草地贪夜蛾幼虫只危害玉米,在10月21日左右出现高峰,其它作物没有发现草地贪危害,危害玉米偏向于苗期、小喇叭口期和大喇叭口期,苗期最严重,抽雄后危害显著减少。

Investigation on the dynamic occurrence of Spodoptera frugiperda in Nanjing County

In order to clarify the population occurrence rule of Spodoptera frugiperda in Nanjing County.Monitoring was carried in Nanjing County,and investigation of Spodoptera frugiperda was carried out in Jingcheng town,Jinshan town,Hexi town,Chuanchang town and Meilin town from during October 2019 to December 2019.The results showed that there were two peaks on the adults of Spodoptera frugiperda in the latter half of the year.The more amount sdults trapping of Spodoptera frugiperda on November 11_^th,were found in corn planting areas,eggplant planting areas and pepper plant planting areas,the most amount adults trapping of Spodoptera frugiperda were in corn planting areas.Only corn were harmed by larvae of Spodoptera frugiperda,peak was occurred in October 21th,the orther corps were not harmed by Spodoptera frugiperda.The corn was damaged seriously in seedling stage,small bell stage and big bell stage mouth,were most damaged in seedling stage,and were less damaged after anthesis stage.