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2012年在河北廊坊通过调查作物围种和作物间作两种不同种植模式棉田中烟粉虱Bemisia tabaci (Gennnadius)MED隐种的分布情况得知,烟粉虱在棉花植株上的垂直分布型为聚集分布,上部和中部叶具有比下部叶较多的烟粉虱种群密度。烟粉虱在棉田中的水平分布情况为:未成熟虫期种群在样地中央和样地边缘种群密度无显著差异,在整个发生期属均匀分布;成虫种群在主要发生期围种模式棉田中样地中央的种群密度显著高于样地边缘的种群密度,属于聚集分布,主要分布于样地中央,在整个发生期种群也主要聚集于样地中央分布;而间作模式棉田样地中央和样地边缘的种群密度无显著差异属于均匀分布。说明围种模式在增加了样地边缘的植物物种多样性对烟粉虱成虫的水平分布有较大影响,通过改变种植模式能显著影响烟粉虱成虫在棉田的分布。
In 2012, in Langfang, Hebei Province, the distribution of MED in Bemisia tabaci (Gennnadius) of cotton whitefly was investigated by investigation of crop bays and crop intercropping. It was found that the vertical distribution of B. tabaci on cotton plants was aggregated Distribution, upper and middle leaves have more population density than the lower leafworm population. The distribution of B. tabaci in cotton field was as follows: The population density of immature worm stage was not significantly different at the center of the plot and edge of the plot, and was evenly distributed throughout the occurrence period; The population densities in the central part of the plots were significantly higher than those in the plots. They belonged to the aggregates and distributed mainly in the central part of the plots. During the whole period, the populations also mainly concentrated in the central distribution of the plots. There was no significant difference in the population density of the marginalis belonging to the uniform distribution. The results showed that the multiplication of plant species on the edges of the plots had a greater impact on the horizontal distribution of adults of Bemisia tabaci by surrounding patterns. By changing the planting patterns, the distribution of Bemisia tabaci adults in the cotton fields could be significantly affected.