白洋淀蝗虫分布调查及其防治

1998～ 2 0 0 2年对白洋淀蝗区的蝗虫种类、分布、优势种群及蝗区水文、植被、土壤、天敌等进行了调查研究。调查表明 ,白洋淀蝗区有蝗总科昆虫 3 0种 ,隶属 6总科、2 2属 ,分布于白洋淀淀内湖泊蝗区、淀边内涝蝗区和淀外河泛蝗区 ;明确以东亚飞蝗Locustamigratoriamanilensis (Meyen)为主的 5个蝗虫优势种群及生活史 ,并根据不同蝗区类型 ,提出了蝗区治理区划、生态治理技术、应急化学防治等 3项防治技术和“两改一加强”防治手段

Locusts in Baiyangdian area and their control

This paper deals with the locusts in Baiyangdian lake and their control. From 1998 to 2002, the authors studied the species, the distribution, the dominant groups, hydrology, vegetation, soil and natural enemy of locusts in this area. The investigation shows there are 30 species of locusts, which belong to 22 categories of 6 sections divided in three parts of the locusts area. There are five dominant groups. Among them Locusta migratoria manilensis(Meyen) is the moot important species. According to different kinds of locust habitats, three control technologies were used, including departing locust areas, ecological and chemical control, as well as the way of “two changes and one reinforcing”.