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This study on the basis of a systematic investigation of the arthropod community Anhui Province cultivars cherry varieties olecranon Cherry Orchard community analysis method analysis of the Cherry Orchard arthropod community structure and its temporal and spatial change, and the use of gray system niche gathered strength mathematical method of analysis of the mutual relations of the Cherry Orchard major pests and their natural enemies, and to provide a theoretical basis for integrated pest management in the region Cherry Orchard. 1 according to the nutrition and feeding of the species in the Cherry Orchard arthropod community relations will total community is divided into sub-community of herbivores class, sub-community of predators, parasitic and neutral class sub-community. Surveyed 62 arthropods, belonging to 14 orders, 48 ??families, including 40 species of herbivores, belong to 6 orders and 30 families; prey on 18 species belonging to 5 orders, 14 families; parasitic Class 1 points belong to families; neutral 3 species belonging to 3 orders, 3 families. Each trophic level in the number of sample Tanaka the herbivores class 20350 predators 2419, parasitic and neutral class 948. Relative abundance of its kind Tanaka were 0.85803,0.10199,0.03997 advantage for the green peach aphid and leafhopper pest, the advantage of natural enemies for the the Harmonia axyridis sudden Crab spider, the dominance of the general community as 0.85803, the dominance of the Asian community as a parasitic class with neutral gt; total community gt; plant food category gt; predators, dominant concentration for parasitic class with neutral gt; the total community gt; the herbivorous class of gt; prey items. 2 arthropod community diversity index and evenness showed wavelike changes, manifested as predacious arthropod sub-community gt; arthropod communities gt; herbivorous arthropods sub-community. By Cherry Orchard arthropod diversity index H 'and its main component - the number of species (S), the number of individuals (N), the dominant concentration index (C), Pielou evenness (J), dominance (d) Path Analysis and species richness (R), and its decision coefficient R = 0.997738, residual path coefficients Pe = 0.047564. Cherry Orchard arthropod community diversity index H 'with Pielou evenness (J) are closely related (correlation coefficient r = 0.9678), the greater the evenness, diversity index also increased, showing a close correlation; same advantages degrees (d), the correlation coefficient of the dominant concentration (C) were -0.9713, -0.9812, showed a close negative correlation, indicating the dominance and dominant concentration greater the diversity of the community is the lower. Three pairs the Cherry Orchard arthropods total community diversity index H 'as its main component - the number of species (S), the individual number (N), the dominant concentration index (C), Pielou evenness (J), dominance (d) Cluster analysis and species richness (R), when the clustering distance D = 0.60 is more reasonable. Total community can be divided into four categories: Ⅰ: 4.11,10.24, II: 4.25,5.9,5.23,6.6,6.20,7.4,8.29,9.10,9.26,10.10, Ⅲ class: 7.17,8.1,8.15,11.7 Ⅳ class: 11.21. Cherry Orchard arthropod community diversity indicators optimal segmentation using optimal segmentation method. The community is divided into five sections, the optimal split :4.11-5 .9,5.23-7.4,7.17-8.15,8.29-10.24,11.7-11.21. 4 using the index of community structure diversity index H ', the number of species (S) , the number of individuals (N), dominant concentration index (C), Pielou evenness (J), the Advantage (d) and species richness (R). Principal component analysis, the to get Cherry Orchard arthropod communities vector matrix M, and come to the the eigenvalue contribution rate of six main components. In order to compare the size of the community contribution of each Index, an important indicator of the second main component with a standard regression coefficient absolute value | b `| comparing absolute values ??of the required standard regression coefficients, N, S, R, H 'total community contribution rate. 5 the killing of two pesticides on the green peach aphid haoniandong Combat peach aphid (Myzus persicae) with fast-acting, efficient, long duration advantages derived by analyzing the disturbance of the green peach aphid chemical control tests and several pesticides on community , spraying 1d efficiency of defense, which amounts to 86.10%, after application 7d control efficiency up to 88.72%, after application of 14 control effect remained 77.44%, spraying the area's diversity index and good in the winter has been stronger than Star spraying area and CK high small natural enemies lethality. Six pairs of the leafhopper its major natural enemies relations with gray system associated degrees when empty niche breadth, niche and niche overlap analysis, quantity, time, space, comprehensive evaluation of the sorting method, The first four dominant species of natural enemies turn Harmonia axyridis, spider Erigonidium, three sudden the Sea Crab spider and cone abdominal Xiao long-legged spider.
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