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Your Position :Home->Past Journals Catalog->2018年55 No.1

Adjustment of cropping structure increases the risk of cotton bollworm outbreaks in China
Author of the article:LU Yan-Hui1** JIANG Yu-Ying2 LIU Jie2 ZENG Juan2 YANG Xian-Ming1 WU Kong-Ming1
Author's Workplace:1. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; 2. National Agro-Technical Extension and Service Center, Beijing 100125, China
Key Words:cotton bollworm, Bt cotton, population outbreak, monitoring and forecast, green control
Abstract:

 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.

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