【摘要】 应用聚集度指标法、Iwao回归分析和频次比较法 ,研究了桃树重要害虫桃潜叶蛾成虫的空间分布型。结果表明桃潜叶蛾成虫在桃园呈负二项分布 ,分析提出了该害虫适宜的调查抽样方法更多还原

【Abstract】 The spatial pattern of peach leafhopper, Lyonetia clerkella, was studied by using some aggregation indexes, Iwao’s aggression model and determination method of frequency distribution. The result showed that the spatial pattern of the pest belonged to the negative binomial distribution in peach orchard. The suitable sampling method was put forward also.更多还原