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研究害虫的田间分布型对阐明其种群特征具有一定的意义。通过此项研究,不仅可以决定确切的抽样调查方法,估计种群密度及对研究资料提出适当的数理统计方法;而且利用这种信息还可以分析害虫的生活习性和对环境条件的适应程度及其种群的消长,有助于提高测报与防治技术。国内已经研究报道了水稻三化螟、玉米螟、棉盲蝽、棉蚜、飞蝗、菜白蝶和棉铃虫等的田间分布型及在实践上的应用。久野英二(1963)报道了水稻田中稻飞虱、稻叶蝉类若虫种群分布均匀,为负二项分布。1978年我们对褐稻虱Nilaparvata lugens Stl的分布型进
Studying the distribution pattern of pests has some significance for elucidating its population characteristics. This study not only determines the exact sample survey method, estimates population density, and presents appropriate mathematical statistics for the study material, but also uses this information to analyze the pest’s habits and adaptations to environmental conditions and their populations The rise and fall, help to improve the reporting and prevention and control technology. In China, the field distribution patterns of rice stem borer, corn borer, cotton laceworm, cotton aphid, locust, cabbage butterfly and cotton bollworm have been reported and applied in practice. Long wild British two (1963) reported rice mid-field planthoppers, rice leafhoppers nymphs population distribution is negative for the binomial distribution. In 1978, we distributed the Nilaparvata lugens Stl