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以调查芳香木蠹蛾的虫孔数代替调查其幼虫数进行密度调查。其幼虫虫孔的空间分布为聚集分布,聚集强度随种群密度的升高而增加。
Density survey was conducted to investigate the number of insect holes in S. avenae instead of investigating the number of larvae. The larval wormhole spatial distribution of aggregation distribution, aggregation intensity increases with population density.