不同耕种稻田害虫及天敌的种群动态  

Population dynamics of pests and their enemies in different cultivated rice fields

作　　者：黄德超[1] 曾玲[1] 梁广文[1] 陈忠南 

机构地区：[1]华南农业大学昆虫生态研究室,广州510642 [2]广东省植物保护总站,广州510500

出　　处：《应用生态学报》2005年第11期2122-2125,共4页Chinese Journal of Applied Ecology

基　　金：国家重点基础研究发展规划项目(20000162209);国家农业产业重大科技专项资助项目(2002-01-05A).

摘　　要：通过田间调查,分析比较了有机耕种稻田和常规耕种稻田害虫和天敌的发生动态.结果表明,在有机稻田主要害虫的发生动态较对照缓和,次要害虫发生种类有所差异,而蜘蛛、捕食性昆虫和寄生蜂等稻田主要天敌数量上明显高于对照,表明停用化学合成物质后天敌的控害作用得到了恢复和明显的加强.Through a whole year field investigation, this paper analyzed the population dynamics of pests and their enemies in organic and normally cultivated rice fields. The results indicated that the population of main pests varied more lightly in organic than in normally cultivated rice field, while subordinated pest species had little difference between these two fields. The individuals of enemies were more in organic than in normally cultivated rice field. It is suggested that the pest-control effect of enemies could be restored and became stronger when no chemical pesticides were applied.

关 键 词：有机稻田 害虫动态 天敌动态 

分 类 号：S435.112[农业科学—农业昆虫与害虫防治] S476.2[农业科学—植物保护]