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棉铃虫（Hecoverpaarmigera（Hubner）是棉花的重大害虫，在江西常间隙性暴发成灾，1992年以来赣北棉区几乎年年大发生，对植棉业威胁很大。该虫的天敌种类很多，对其发生为害有不同程度的控制作用，在一些年份和特定生态环境中对其自然种群的增长有明显的抑制作用。近几年来，
The cotton bollworm (Hecoverpaarmigera), a major insect pest of cotton, is often plagued by intermittent outbreaks in Jiangxi Province. Since 1992, cotton fields in the north and south of China have been threatened by planting cotton almost every year, Which have different degrees of control over the occurrence of harm and obviously inhibit the growth of their natural populations in some years and in specific ecological environment.In recent years,