观赏桃园害虫及天敌群落结构研究

对观赏桃园昆虫群落的时间结构研究表明:桃园昆虫有64种,隶属于11目48科。物种数随季节变化而变化,主要优势种为桃小绿叶蝉(Empoasca flavescensFabr.)和山楂叶螨(Tetranychus viennesisZacher)。在不同时间其优势度、多样性、均匀性等也不断变化。根据群落的相异系数对桃园6~9月的昆虫群落进行分析表明,8月中旬与8月下旬的昆虫群落最为相似,其次是7月上旬与7月中旬。

Studies on the Community Structure of Major Pests and Natural Enemies in Peach Orchard

The study of the time pattern of the insect community in peach orchard shows that there are 64 different breeds of insects and they belong to 11 orders and 48 families.There are different kinds of insects in different seasons,and the main kinds are Empoasca flavescens Fabr and Tetranychus viennesis Zacher.The dominance,diversity and evenness vary with the time.According to the analyses of the insect community during June and September,the insect community between mid-August and that between late August are the most similar,then are the insect community at the beginning of July and that in mid-July.