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为了科学施药、合理利用和保护自然天敌进行茶丽纹象甲Myllocerinus aurolineatus Voss和茶角胸叶甲Basilepta melanopus Lefevre的综合防治,用灰色系统分析法、生态位分析法和空间格局聚集强度指标分析方法对大别山区茶园2种主要害虫与其捕食性天敌在数量、时间、空间关系等进行分析。综合排序的结果表明:茶丽纹象甲的主要天敌是黑步甲、日本球腹蛛和鞍型花蟹蛛;茶角胸叶甲的主要天敌是草间小黑蛛、锥腹肖蛸和茶色新圆蛛。茶丽纹象甲的λ值小于2,聚集是由环境的影响所致,茶角胸叶甲的λ值大于2,聚集是由昆虫主动聚集或任何一种因素引起的。2种害虫的天敌λ值均小于2,其聚集是由于环境中的某些因子(包括害虫)引起的。
In order to scientific application, rational use and protection of natural enemies for the comprehensive control of Myllocerinus aurolineatus Voss and Basilepta melanopus Lefevre, gray system analysis, niche analysis and spatial pattern aggregation strength analysis Methods The quantity, time and spatial relationship of two major pests and their predatory enemies in the tea plantation in the Dabie Mountains were analyzed. The results showed that the main natural enemies of C. elegans were Hebucao, Juglans mandshurica and Saddle-type crab spider. The main natural enemies of S. lanceolata were C. lanceolata, Tawny new round spider. The larval value of A. sinensis is less than 2. The aggregation is caused by the environment. The lambda value of thoracic and thallus is more than 2, and the aggregation is caused by the agglomeration of insects or by any factor. The natural enemies of both pests had a lambda value of less than 2, and their aggregation was caused by certain factors in the environment, including pests.