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本文采用比较频次法和聚集度指标法，测定木毒蛾各虫态的分布型。应用Ｉｗａｏ方法，计算各虫口密度下的林间最低抽样数，分析了中幼林中幼虫序贯抽样。研究表明，木毒蛾各虫态（卵块、幼虫、蛹）在木麻黄防护林中呈聚集分布，幼虫以聚集型扩散。幼虫在中低密度下，以对角线和棋盘式取样最佳，卵块以对用线取样最佳。对木毒蛾的防治应以营林措施为基础，坚持生物防治，可以有效地控制其虫口密度。
In this paper, comparative frequency method and aggregation degree index method were used to determine the distribution pattern of each worm state. The Iwao method was used to calculate the minimum number of inter-forest samplings under different population densities. Sequential larval sampling was also conducted in young and middle-aged forests. Studies have shown that the worm wood moth each state (eggs, larvae, pupae) in the Casuarina Shelter forest was concentrated distribution of larvae to aggregate type of diffusion. Under medium and low density larvae are best sampled diagonally and checkerboards, with the egg mass sampling the best on the line. The prevention and control of wood moth should be based on silviculture measures, adhere to biological control, can effectively control its insect population density.