云南稻区白背飞虱越冬种群发生 及其与田间种群的相关性
Characteristics of the overwintering population of the white-backed planthopper and the correlation between the abundance of this population and that of the summer population in Yunnan
赵雪晴；吴 俨；尹艳琼；李向永；谌爱东；吕建平；翟保平
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DOI：10.7679/j.issn.2095-1353.2018.045
作者单位：云南省农业科学院农业环境资源研究所，昆明 650205；南京农业大学昆虫学系，南京 210095； 云南省植保植检站，昆明 650034；贵阳学院，贵州省山地珍稀动物与经济昆虫重点实验室，贵阳 550005
中文关键词： 白背飞虱，越冬种群，发生，分布，云南
英文关键词： Sogatella furcifera, overwintering, occurrence, distribution,Yunnan
中文摘要：
【目的】 掌握云南稻区白背飞虱Sogatella furcifera,越冬虫源特征及其与田间种群大发生的相关性。【方法】 2010-2015年，对云南省主要稻区白背飞虱的越冬虫情进行田间调查；2013年南京农业大学与云南省农科院的科研人员行程6 000 km联合对滇西、滇西南、滇南和滇东南等10县20个稻区进行了实地越冬调研。【结果】 云南省各稻区白背飞虱越冬种群主要集中在23°57¢N以南，海拔高度为1 608 m 以下的稻区。同一稻区白背飞虱越冬虫口密度波动较大，一般在1 200头/667 m2之内，以若虫和成虫越冬，且若虫占总越冬虫量的97.33%，主要聚集在有水源的再生稻、稻桩、落粒苗和早稻秧苗上。本地越冬种群密度（越冬虫量）与秧田虫量、移栽期虫量、孕穗期虫量、大田总虫量的相关性并不显著（P>0.05）。【结论】 云南稻区本地越冬虫源数量对白背飞虱种群大发生的形成贡献十分有限。
英文摘要：
[Objectives] To understand characteristics of the overwintering population of the white-backed planthopper, Sogatella furcifera, in major rice growing areas of Yunnan province, and the relationship between the abundance of this population and that of the summer population during the rice growing season. [Methods] Systematic field survey methods were used to assess the overwintering population of S. furcifera in the major rice growing areas of Yunnan Province from 2010 to 2015. In 2013, researchers from Nanjing Agricultural University and the Yunnan Academy of Agricultural Sciences jointly conducted field surveys covering 6 000 kilometers in 10 counties. Sampling to investigate overwintering characteristics was conducted at 20 sites in western, southwestern, southern and southeastern Yunnan. [Results] The overwintering population of S. furcifera in rice-growing areas of Yunnan was mainly concentrated in the south (23°57¢N) up to 1 608 m above sea level. In this region, the density of the overwintering population fluctuated widely below a maximum of 1 200/667 m2, and nymphs and adults comprised 97.33% of the population. The main overwintering sites were in ratooning rice, rice piles and early season seedlings in paddy-fields. There was no significant correlation between the density of the local overwintering population, and abundance during the seedling stage, transplanting period, booting stage, or the total population (P>0.05). [Conclusion] The likelihood of S. furcifer outbreaks from the overwintering population is small in Yunnan province.