Arthropod Community And Integrated Management Of Major Pests In Chinese Olive Orchard

This thesis adopted the systematic investigation with the method that the indoors feed to experiment was to be combined together, the structure character and development of arthropod community in Chinese olive orchard, and the biology and ecology of majior pests of Chinese olive were studied, the association economic threshold and the strategy for integrated management of the majior pests of Chinese olive were established, Intelligent Decision Neural Network System of Integrated Pests Management of Chinese Olive was designed.1. The Construction Character and Development of Arthropod Community in Chinese Olive OrchardAccording to the systematic investigation and identify of Arthropod Community in Chinese olive orchard during the years of 1998-2002 in the Fujian province main producing area of Chinese olive in Minqing, Minhou, Fuzhou county, the arthropod community in Chinese olive orchard include Sordes, 37 families, 66 species of pests, 6 orders, 12 families, 25 species of predacity natural enemies, 2 orders, 13 families, 35 species of parasitic natural enemies. In total of them, except for 21 species of pests and 16 species of natural enemies had been recorded, 45 species of pests and 45 species of natural enemies were recorded for the first time in Chinese olive orchard.According to the systematic investigation data from Chinese olive orchard, the species richness of arthropod community in Chinese olive orchard were determined, and the diversity indexes, the predominance central ity indexes and the distributive evenness indexes were determined. The result showed that the structure character of arthropod community in different type Chinese olive orchard were different obviously, because of the difference of the vegetation, the ages and the way of Chinese olive trees growing, management level from different Chinese olive orchard. The species richness sequence of arthropod community among different type Chinese olive orchard wasecological Chinese olive orchard, integrated management Chinese olive orchard, chemical control Chinese olive orchard, spring tree Chinese olive orchard, adult tree Chinese olive orchard, hilly country Chinese olive orchard , river pool ground Chinese olive orchard. The diversity and distributive evenness of main colony of arthropod community among different type Chinese olive orchard varieties were significant. The predominance centrality indexes of main colony of arthropod community in Chinese olive orchard among different type Chinese olive orchard varieties were insignificant. In the same one Chinese olive orchard, the predominance centrality indexes of the different orders of main colony of arthropod community in Chinese olive orchard varieties were significant, the predominance centrality indexes sequence was Homoptera, Coleoptera , Lepidoptera , Hymenoptera. The diversity and distributive evenness of the different orders of main colony of arthropod community in Chinese olive orchard varieties were insignificant.The species richness seasonal dynamics of main colony of arthropod community in Chinese olive orchard showed certain regulation. The species richness of Homoptera insect was significantly higher than that of the other orders, three was three fastigiums. one year, and they occurred in March, June, November; The species richness of Coleoptera insect occurred one fastigium one year in March; The species richness of Lepidoptera insect occurred four fastigums one year in March, June, September, November; The species richness of Hymenoptera insect occurred three fastigium one year in April, June, September.Adopted Berger-Parker predominance centrality indexes to determine predominant species, the result showed that the predominant pests in Chinese olive orchard were Pseudophacopteron canarium Yang & Li, Spulerina sp., Adoxophyes orana Fischer von Rosterstamm, Phytidodera bowringi White, and they changed following the season. The predominance centrality indexes of the predominant pests among different type Chinese olive orchard were different. Ps...