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研究结果表明：（１）病害烂铃在棉株上的水平、垂直和外扩三方向上的分布模型均呈ｙ＝ａｘｂ（ｂ＜０），以棉株基部１～３台果枝和２．６个圆锥体围层上的烂铃为主，分别占烂铃总数的８９．２２％和９７．８４％。（２）棉铃虫蛀害烂铃在棉株上的水平方向分布模型：３～１０台呆枝上呈ｙ＝ａｘ２＋ｂｘ＋ｃ（ａ＜０），另２～３果节上虫蛀烂铃最多；１１～１８台果枝上为ｙ＝ａｘｂ（ｂ＜０），第１～２果节上虫蛀烂铃最多。垂直方向分布模型为ｙ＝ａｘ２＋ｂｘ＋ｃ（ａ＜０），第１１台果枝上虫蛀烂铃最多；虫蛀烂铃以１１～１５台果枝上的另１～２天节上分布为核心，占虫蛀烂铃总数的５４．７６％。（３）上述结果对指导棉花烂铃防治具有重要的科学意义。
The results showed as follows: (1) The distribution patterns of rotten boll plants in three horizontal, vertical and outward spreading directions of cotton plant were y = axb (b <0), with 1 ~ 3 fruit branches and 2.6 Belly on the cone of rotten bell-based, accounting for 89.22% and 97.84% of the total number of rotten bell. (2) The horizontal distribution model of rotten bollworm in cotton bollworm: y = ax2 + bx + c (a <0) in 3 ~ 10 dwelling branches and the most rotten bellworm in 2 ~ 3 ~ 18 sets of branches on the y = axb (b <0), 1 to 2 fruit section on the most rotten bell insects. The distribution model of vertical direction was y = ax2 + bx + c (a <0), and the number of rotten insects on the 11th fruit branch was the highest; the insects were mainly distributed on the nodes of 1 ~ 2 days on 11 ~ 15 fruit branches, 54.76% of the total number of rotten bells. (3) The above results have important scientific significance to guide cotton bollworm prevention and control.