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白三叶又名三叶草,豆科车轴草属。具有抗干旱、耐修剪、花期长等优点,是一种优良的园林地被植物,在泰安市的公园绿地均有栽植。在白三叶草坪生长过程中,经常受到病虫的为害,为此笔者对其进行了调查研究。1调查与研究方法对泰安市区的白三叶病虫害情况进行普查,根据区域大小,采取随机取样法,调查统计病虫数量,计算虫口密度和病害发生情况。采集标本,参照有关资料,借助相关仪器,对病虫害的形态特征或为害症状进行描述。
White clover, also known as clover, leguminosae genus. With the advantages of drought resistance, pruning and long flowering period, it is an excellent ground cover plant and is planted in parks and green areas in Tai’an City. In the white clover lawn growth process, often by pests and diseases, for which I conducted a survey. 1 Survey and Research Methods The survey of white clover diseases and pests in the urban area of Tai’an was conducted. According to the size of the area, random sampling method was adopted to investigate the number of pests and diseases and calculate the population density and disease occurrence. Collect samples, with reference to the relevant information, with the help of related equipment, describe the morphological characteristics of pests and diseases or harmful symptoms.