《环境昆虫学报》

对大谷蠹Prostephanus truncatus和谷蠹Rhizopertha dominica成、幼虫在花生和玉米中运动的声音进行参数分析，通过声学方法实现大谷蠹和谷蠹种类和虫态的鉴定。采用声学软件Cool Edit PRO对大谷蠹和谷蠹成、幼虫在花生和玉米中运动的声音进行时频域分析，统计它们的脉冲数、虫声峰值、频率峰值及脉冲持续时间并进行分析，最后确定特征参数。大谷蠹和谷蠹在花生中运动的声音参数中，大谷蠹和谷蠹成虫之间、大谷蠹和谷蠹幼虫之间、大谷蠹成幼虫之间、谷蠹成幼虫之间在脉冲数、虫声峰值和脉冲持续时间上都存在显著差异，说明脉冲数、虫声峰值或脉冲持续时间可以区分各虫态的大谷蠹和谷蠹。在玉米中运动的声音参数中，大谷蠹和谷蠹成虫在脉冲数和脉冲持续时间上存在显著差异，大谷蠹和谷蠹幼虫在虫声峰值和脉冲持续时间上存在显著差异，说明脉冲数或脉冲持续时间可以区分大谷蠹和谷蠹成虫，虫声峰值或脉冲持续时间可以区分大谷蠹和谷蠹幼虫。大谷蠹成幼虫之间、谷蠹成幼虫之间在脉冲数、虫声峰值和脉冲持续时间上存在显著差异，说明通过脉冲数、虫声峰值或脉冲持续时间可以区分大谷蠹成幼虫、谷蠹成幼虫。通过脉冲数、虫声峰值或脉冲持续时间可以有效区分花生和玉米中大谷蠹和谷蠹的种类和虫态。

英文摘要:

This study aims to identify Prostephanus truncatus and Rhizopertha dominica species and developmental stages using acoustic methods by analyzing the movement sounds of adults and larvae in peanuts and corn. The acoustic software Cool Edit PRO was employed to analyze the sound produced by adult and larvae of P. truncatus and R. dominica as they moved through peanuts and corn, by a time-frequency domain approach. The number of pulses, the peak of insect sounds, the peak of frequency and the duration of pulse of their insect sounds were counted and analyzed to determine characteristic parameters. In peanuts, there were significant differences respectively in the number of pulses, the peak of insect sounds, and pulse duration between P. truncatus and R. dominica adults, P. truncatus and R. dominica larvae, P. truncatus adults and larvae, R. dominica adults and larvae. The result indicated that number of pulses, peak of insect sounds or pulse duration could distinguish between P. truncatus and R. dominica in each stage. In corn, there were significant differences respectively in number of pulses and pulse duration between P. truncatus and R. dominica adults, and there were significant differences in peak of insect sounds and pulse duration between P. truncatus and R. dominica larvae. The result indicated that number of pulses or pulse duration could distinguish between P. truncatus and R. dominica adults, and peak of insect sounds or pulse duration could distinguish P. truncatus and R. dominica larvae. Number of pulses, peak of insect sounds and pulse duration were significant differences respectively between P. truncatus adults and larvae, R. dominica adults and larvae. It indicated that number of pulses, peak of insect sounds or pulse duration could distinguish the adults and larvae of P. truncatus, the adults and larvae of R. dominica. Sound parameters, including number of pulses, peak of insect sounds, and pulse duration, could effectively differentiate between the species and physiological states of P. truncatus and R. dominica in peanut and corn.

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