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在白榆林内采用定点追踪观察并结合查迹判断的方法,对光肩星天牛自然种群动态作了调查并组建生命表进行分析后得出:其种群趋势指数为3.93;卵期和Ⅰ期幼虫期是其整个生活世代中的薄弱环节,是防治的有利时期;Ⅰ期幼虫的微生物寄生是影响种群趋势指数最大的一个因素;并对各虫期的发生量进行了预测
The observation of the natural population of Anoplophora glabripennis and the establishment of the life table were conducted by using the method of fixed-point tracking observation combined with the detection of tracing in the white-yulin forest. The trend index of the population was 3.93. The egg stage and stage Ⅰ larval stage Is the weakest link in its entire life cycle and is a favorable period for prevention and control. Microbial parasitism of stage Ⅰ larvae is one of the factors influencing the population trend index, and the occurrence of each stage is predicted