【摘要】 为了明确卵形短须螨的优势种天敌,为卵形短须螨的综合治理提供科学依据,运用灰色关联度法、地学统计方法和生态位方法,开展了乌牛早茶园和白毫早茶园年度间和茶树品种间天敌对卵形短须螨在数量、时间、空间关系上跟随关系密切程度差异的研究。对上述结果进行标准化,进行综合评判,据此明确卵形短须螨的优势种天敌。结果是,两年间乌牛早茶园卵形短须螨前四位天敌依次是草间小黑蛛、鳞纹肖蛸、斜纹猫蛛和茶色新圆蛛;白毫早茶园是三突花蟹蛛、茶色新圆蛛、鳞纹肖蛸和锥腹肖蛸。2015年两品种茶园卵形短须螨前四位相同的天敌是鳞纹肖蛸、茶色新圆蛛、草间小黑蛛和锥腹肖蛸;2016年是斜纹猫蛛、三突花蟹蛛、鳞纹肖蛸和草间小黑蛛。对两品种茶园2015年和2016年卵形短须螨优势种天敌的综合评判,前四位天敌中相同的天敌是鳞纹肖蛸和茶色新圆蛛。此结果为利用自然天敌控制卵形短须螨提供了科学依据。更多还原

【Abstract】 The present study investigated the quantity and spatiotemporal patterns of Brevipalpus obovatus Donnadieu and its natural enemies in the tea garden of "Wuniuzao" and "Baihaozao" in Hefei suburban district, China in 2015 and 2016. The reasons for differences in the relationship between the same natural enemies and the pest species in the two years were evaluated. The ranges of spatial dependence of natural enemies were calculated by the method of geostatistics, and the spatial relationships among enemies and pests were analysed using grey relational analysis and ecological analyses. The four major enemies that showed close relationship with Brevipalpus obovatus Donnadieu in the tea garden of "Wuniuzao" were Erigonidium graminicolum, Tetragnatha squamata Karsch, Oxyopes sertatus, and Neoscona theisi, and in the tea garden of "Baihaozao" were Misumenops tricuspidatus, Neoscona theisi, Tetragnatha squamata Karsch, and Tetragnatha maxillosa. Furthermore, T. squamata, N. theisi, E. graminicolum, and T. maxillosa were closely associated with B. obovatus in both gardens in 2015, whereas O. sertatus, M. tricuspidatus, T. squamata, and E. graminicolum were closely associated with B. obovatus in both gardens in 2016, and T. squamata and N. theisi were included among the main natural enemies of both tea gardens during both years. These results provided an important foundation for further studies related to protecting natural enemies and optimizing control strategies of B. obovatus in tea gardens.更多还原