Abstract:At present, the major insect pests of Hemiptera in tea gardens are Empoasca vitis, Dialeurodes citri, Aleurocanthus spiniferus and Taxopetera aurantii. To scientifically utilize and conserve enemies for integrated control of insect pests of tea, in the present work, the quantity as well as temporal and spatial patterns of the four major pests of tea and their natural enemies in Qianshan area, Anhui province were systematically studied using grey system analysis, ecological niche analysis and aggregated-intensity index analysis of spatial patterns. The results showed that the orders of the closely followed natural enemies of Empoasca vitis were Misumenops tricuspidatus, Clubiona reichin, Xysticus ephippiatus, Neoscona theisi and Theridion octomaculatum in quantity, Misumenops tricuspidatus, Clubiona reichini, Xysticus ephippiatus, Theridion octomaculatum and Neoscona theisi in time, as well as Misumenops tricuspidatus, Clubiona reichin, Erigonidium graminicolum, Theridion octomaculatum and Neoscona theisi in space, respectively. The synthetic ranking results indicated the orders of main natural enemies of Empoasca vitis were Misumenops tricuspidatus, Clubiona reichini, Theridion octomaculatum, Neoscona theisi and Xysticus ephippiatus. For Dialeurodes citri, the orders of its closely followed natural enemies were, respectively, Tetragnatha maxillosa, Enoplognatha japonica, Erigonidium graminicolum, Propylaea japonica and Theridion octomaculatum in quantity, Propylaea japonica, Tetragnatha maxillosa, Erigonidium graminicolum, Theridion octomaculatum and Enoplognatha japonica in time, and Theridion octomaculatum, Erigonidium graminicolum, Propylaea japonica, Harmonia axyridis and Misumenops tricuspidatus in space. And the synthetic ranking results demonstrated that the orders of main natural enemies of Dialeurodes citri were Propylaea japonica, Erigonidium graminicolum, Theridion octomaculatum, Tetragnatha maxillosa and Harmonia axyridis. The further analysis showed that the orders of the closely followed natural enemies of Aleurocanthus spiniferus were, respectively, Erigonidium graminicolum, Tetragnatha maxillosa, Theridion octomaculatum, Harmonia axyridis and Xysticus ephippiatus in quantity, Erigonidium graminicolum, Theridion octomaculatum, Tetragnatha maxillosa, Harmonia axyridis and Clubiona reichini in time, and Theridion octomaculatum, Erigonidium graminicolum, Harmonia axyridis, Tetragnatha maxillosa and Propylaea japonica in space. Whilst the synthetic ranking results revealed that the orders of main natural enemies of Aleurocanthus spiniferus were Theridion octomaculatum, Erigonidium graminicolum, Tetragnatha maxillosa, Harmonia axyridis and Clubiona reichini. Whereas compared to the three insect pests above, the orders of the closely followed natural enemies of Taxopetera aurantii were, respectively, Harmonia axyridis, Enoplognatha japonica, Erigonidium graminicolum, Xysticus ephippiatus and Theridion octomaculatum in quantity, Enoplognatha japonica, Erigonidium graminicolum, Xysticus ephippiatus and Neoscona theisi in time, and Harmonia axyridis, Erigonidium graminicolum, Theridion octomaculatum, Neoscona theisi and Xysticus ephippiatus in space. And the synthetic ranking results displayed that the orders of main natural enemies of Taxopetera aurantii were Harmonia axyridis, Enoplognatha japonica, Erigonidium graminicolum, Xysticus ephippiatus and Neoscona theisi. In addition, our findings showed that the λ values of gathering average of all four insect pests, i.e. Empoasca vitis, Dialeurodes citri, Aleurocanthus spiniferus and Taxopetera aurantii, were greater than two, indicating that the aggregation of insect pest was caused by theirself, while the λ values of gathering average of natural enemies were less than two, implying that the aggregation of natural enemies was caused by different environmental factors. These above results may provide an important foundation for further protecting natural enemies and optimizing control strategies of the four major insect pests in tea gardens.