中文摘要：

近年来，随着人们对生态环境和生物多样性的广泛关注以及害虫防治技术的深入研究，有害节肢动物的天敌防治再次纳入人们的视野。国内外诸多学者在总结引入天敌控制有害节肢动物经验后，认为本地寄生性和捕食性天敌对当地有害节肢动物的综合治理起着很大的作用（张明伟等，2003）。在枣园害虫的综合治理中，重视枣园生态系统中节肢动物天敌群落的保护是一项积极的措施，值得深入探讨和研究。

英文摘要：

The natural enemy arthropods are applied to control pest insects,which improve the integrated pest management in jujube yard. The spatio-temporal structure and dominance of natural enemy arthropod in jujube yard were systematically studied by a survey method. According to the survey data,there were 1 648 natural enemy arthropod, including 1 331 samples on the ground surface and 317 samples on the trees. The natural enemy arthropods belonged to 2 classes,10 orders,52 families and were divided into four subcommunities,that is predacious insects,parasitic insects, predacious spiders and predacious mites. In different month,there was different dominance index of natural enemy arthropods between on the ground surface and on the trees. Then,the correlation of primary and secondary effect of cumulative dominance index was analyzed by the Pareto Charts method. Their status and function of ecological control were compared and estimated to determine when subcommunities of natural enemy arthropod were controlling the pest insects. Predacious arthropods,especially Coccinellidae,had primary effect for controlling pest insects on the ground surface. Both parasitic insects and predacious arthropods,such as Pteromalidae,Ichneumonidae,Chrysopidae,Araneidae,had primary effect on pests on the trees.