种植业结构调整增加棉铃虫的灾变风险
Adjustment of cropping structure increases the risk of cotton bollworm outbreaks in China
陆宴辉1** 姜玉英2 刘 杰2 曾 娟2 杨现明1 吴孔明1
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DOI：10.7679/j.issn.2095-1353.2018.003
作者单位：1. 中国农业科学院植物保护研究所，植物病虫害生物学国家重点实验室，北京 100193； 2. 全国农业技术推广服务中心，北京 100125
中文关键词：棉铃虫，Bt棉花，种群灾变，监测预警，绿色防控
英文关键词：cotton bollworm, Bt cotton, population outbreak, monitoring and forecast, green control
中文摘要：
棉铃虫Helicoverpa armigera (Hübner)是一种重要的多食性害虫，20世纪90年代曾在我国连年大暴发，自2000年左右种群发生逐步减轻，2010年以来危害程度再次加重。本文系统分析了棉铃虫种群地位演变的生态学机制，总结了作物结构调整下棉铃虫发生现状并预测了发生趋势，提出了今后棉铃虫的监控重点，为棉铃虫监测预警和绿色防控提供科学指导。
英文摘要：
The cotton bollworm, Helicoverpa armigera (Hübner), is an important polyphagous insect pest worldwide. In China, successive, economically significant outbreaks of this pest occurred during the early 1990s. Although H. armigera populations began to decline markedly by around 2000, the species has recovered again since 2010. This paper analyzes the ecological mechanisms involved in the changing pest status of the cotton bollworm, the likelihood of outbreaks under adjusted cropping structures, forecasts population trends, and proposes management methods.