对稻田主要节肢类捕食性天敌群落的多样性,及其与稻飞虱发生之间的关系进行了研究。结果表明,不同时间、不同地点以及水稻不同生育期的天敌群落的多样性有明显差异;化学农药的使用大大降低了群落多样性。天敌群落的多样性与稻飞虱的发生有一定的相关关系,多样性高的节肢类捕食性天敌群落能抑制稻飞虱的大发生。 The diversity of predatory natural enemy community and its relationship with the occurrence of rice planthoppers in paddy fields were studied. The results showed that there were significant differences in the diversity of natural enemy communities at different times, locations and rice growth stages; the use of chemical pesticides greatly reduced the community diversity. The natural enemies community diversity and the occurrence of planthopper have a certain correlation, high diversity of arthropod predators community can inhibit the occurrence of planthoppers.