益阳市赫山区水稻主要害虫发生动态监测与分析  

Dynamic monitoring and analysis of main rice pests in Heshan District of Yiyang City

作　　者：颜妙珺 王小凤 严玲玲 李光波 李治潮 肖少华 Yan Miaojun;Wang Xiaofeng;Yan Lingling;Li Guangbo;Li Zhichao;Xiao Shaohua(Yiyang Academy of Agricultural Science,Yiyang Hunan 413000,China;Plant Protection Station of Heshan District,Yiyang Hunan 413000,China)

机构地区：[1]益阳市农业科学院,湖南益阳413000 [2]益阳市赫山区植保植检站,湖南益阳413000

出　　处：《中国植保导刊》2022年第12期32-37,共6页China Plant Protection

摘　　要：为掌握水稻主要害虫发生动态,对虫害进行早期预警,保障粮食生产安全,笔者根据益阳市赫山区2018—2021年的灯诱数据,分析了该区二化螟、稻纵卷叶螟、白背飞虱和褐飞虱的灯下始见日、发生期、灯诱量及雌雄比等。结果表明,赫山区二化螟每年发生4代,灯下始见日在4月上中旬,雌雄比接近1∶1,1代为主害代。稻纵卷叶螟每年发生6代,灯下始见日在5月上中旬,10月底仍可见虫,雌雄比2.62∶1,四(3)代至六(5)代构成当地主害代。白背飞虱灯下始见日在4月下旬至5月上旬,灯诱高峰主要集中在5月中旬至6月下旬;褐飞虱始见日在5月中下旬,灯诱高峰主要集中在5月下旬至7月下旬、8月底至9月中旬。早稻受白背飞虱和褐飞虱混合为害,白背飞虱虫量较多,晚稻则以褐飞虱为害为主。To understand the occurrence dynamics of the main rice pests for early warning of pests and ensuring the safety of food production, we analyzed the emergence, occurrence period, light-trap catches and sex ratio of Chilo suppressalis,Cnaphalocrocis medinalis, Sogatella furcifera, and Nilaparvata lugens in Heshan District of Yiyang City based on the historic data of light-trapping from 2018 to 2021. The results showed that there were four generations of Chilo suppressalis in this area per year. The first generation of Chilo suppressalis emerged in early and mid-April, and the sex ratio was close to 1 ∶1. There were six generations of Cnaphalocrocis medinalis per year, which emerged in early and mid-May and still could be found at the end of October. The sex ratio of Cnaphalocrocis medinalis was 1 ∶2.62, and four(3) to six(5)generations were the main generations that caused severe damage. The beginning date of Sogatella furcifera under the lamp was from late April to early May, and the peak was mainly from mid-May to late June. Nilaparvata lugens began to appear in mid-late May, and the peak of light trapping was mainly from late May to late July, and from the end of August to midSeptember. Early rice was damaged by both Sogatella furcifera and Nilaparvata lugens, Sogatella furcifera was more in number, and Nilaparvata lugens was the dominant species in late rice.

关 键 词：灯诱 二化螟 稻纵卷叶螟 白背飞虱 褐飞虱 发生期 

分 类 号：S435.112[农业科学—农业昆虫与害虫防治]